Procomp heads review forum 2020 Cobalt has asked questions that could actaully BENNEFIT Pro Comp's reputation if they can be shown to be a quality head. Jump to Latest Feb 22, 2022 · Speedmaster / PROCOMP Iron Chevy Small Block Heads Jump to Latest 4. , 111 Peter Oct 19, 2016 · Yes the valve stems are the same length as the Edelbrock Victor heads. Taken off and put on the shelf years ago. Sep 16, 2008 · I have a set of new Pro Comp aluminum 64cc/190cc heads on my 383 SBC with a Performance products dual plane intake (Edelbrock air gap clone). Sep 8, 2014 · Pro Comp heads I understand that Pro Comp (China) sells the bare heads to dealers, and the dealers put them together. Jan 31, 2020 · Pro comp 295cc heads for BBF any good?www. Dec 25, 2012 · In my case, there is one main thing that I am unsure about, and I was not notified/aware of when I purchased these heads. I assure you they are not. 332-428 Ford FE Engine Forum > General Mar 11, 2021 · After bad experience with pro comp distributor and metering block my take is never again. About two months later I took them to get ported, $500. Jan 8, 2012 · 210 heads im tring the 210 heads on a 347 should have it running soon. All Procomp aluminum cylinder heads feature the following: High Grade Aluminum; Bronze Valve Guides; Hardened Seats; Advanced Port Design for greater flow Mar 11, 2017 · Pro Comp now calls themselves "Racemaster" and they have 2 distinctly different heads available for the big block Mopar engine. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! Procomp offers a wide variety of aluminum cylinder heads for both race and mild street applications. Running a . 02\1. The TFS Street head requires no modification to bolt on but the P-51 will require the same valve reliefs as the new SCJ. Rough all around to say the least. All the other engine builders my dad and I have worked with have said the Pro-Comp castings are good quality, buy them bare and build them with quality hardware. cheap build engine. buy bare castings and put manley or ferrea valves in with compcams or better springs, locks, etc. He scraps (Pro Comp has no return policy that I know of) about 1 head out of 20 for incorrect machinework, and poor quality etc. 8 or so out of mine so it looks like I will be in the ball park. These heads appear to be really good castings and Skip installs name brand components. 650 lift hyd. 00 ( Australian dollars ) for the Edelbrock Victor heads. Nov 24, 2016 · C3 Tech/Performance - Pro comp 190 cc heads for 383 stroker - Have a fully forged 383 short block sitting on an engine stand for the past two years Have a worked 350 . Pushes around 910 to 920hp. 10. I built this engine using pro comp heads,intake roller rockers aluminum waterpump,distributor and ignition box. Dec 31, 2012 · Then go buy a good set of heads from a reputable supplier. This shop Oct 31, 2012 · When my old man built the engine in my 68 it was a low budget sbf 357w we bought the pro comp heads bare they were a cheap copy of the vic jr seeing i had a 408 in my fox with the vic jr heads i was able to compare side by side and honestly they arent perfect but after extensive port work throwing in our own valve and springs having the heads machined i had about $1100 into the pair and they Aug 6, 2019 · My personal issue with the assembled heads is, I don’t have a lot of faith in the parts. 50 et camaro in a 468 pump gas engine. Long answer is that if you're going to spend a dollar on junk Pro-Comps, save the dollar and spend it later on heads that are a real upgrade over stock. The seat and guides are very good quality and they machine very nice. It baselined at 442 HP at 6800 rpm. This is the 190cc, angled plug design. All Procomp aluminum cylinder heads feature the following: High Grade Aluminum; Bronze Valve Guides; Hardened Seats; Advanced Port Design for greater flow May 19, 2021 · i admire a person so far from the US that is rebuilding a US made engine. unless i was building a $50,000 car i wouldnt even consider them cause money would be no object them i would buy a set of the profiler 210's Mar 20, 2010 · i know im gonna get bashed for this but i am i 19 year old and on the same budget as your son and i bought a set of the procomp sbc heads last year. 620-. bolt em on. the valve angles were also different on some of the 74cc heads. Procomp offers a wide variety of aluminum cylinder heads for both race and mild street applications. So in April this year I ordered from Skip White his BBC aluminum heads . Pushes a 3400lb nova to 8. Comp cam setup on a 496" stroker!! Unit made slightly above 600 HP on 93, and is still running with not a single issue, even with the "cast" blank hyd-roller! Jul 28, 2017 · I don't know anything about pro comp heads. Oct 29, 2018 · Brodix BBC block $2100 BRB4584298S my Brodix story--guy buys some Brodix seconds, has them pro-ported, first time on the Dyno one cylinder fills up with water, heads is tested and has casting flaw in the deck and has to be welded, and new seats, etc, on the one cylinder, engine runs a while in a drag car then fills up another cylinder, guys buys new heads from AFR. Will ship straight plug unless you request angle Dual-Quench Combustion Chambers Bronze Valve Guides Dec 30, 2010 · pro comp Running Pro Comp 320s. Definitely do a better valve job. Body, Chassis and Mechanical. The one in the picture is the first pro comp head I've seen broken like that. Dec 6, 2005 · I also say get the TFS Street heads before you buy the Pro-Comp's. Jun 15, 2020 · I just wanted to share my experiences with these heads so others can evaluate what I dealt with and decide if they are worth their investment. there are stories of bad valve seats whatever. 400 lift, everywhere else was about 2 cfm. 60 single plane heads obtained on eBay to build a 400+ HP & lb-ft. more or less. looking real hard at the Edelbrock, and even considering building the cast iron heads. 0/302, 5. The flow numbers are decent on these heads, but only after a valve job and some casting cleanup. Mine came from the old MP 360/380 crate motor. 880 exh. Another good friend is a huge distributor in the mid west Jan 24, 2007 · Pro-comp is taking advantage of this and peddling their chinese foundary heads sold out of Australia and warehouse suppliers are saying they are the rhs pro-topline head. He has a dyno in Ohio and lost his butt on the job because he had to wait for a useable set of heads to be sent to him so he could compete the test. It cost $1000 at the machine shop to get a proper valve job(as delivered the valve seats where smaller than the valve), the guides honed to proper tollerances (they where WAY too tight), a pocket porting job, and the spring pressures set to spec for my cam. Solid bronze valve guides. 552” length Both technically “too long” imo. Jul 3, 2019 · 2015 - 2020 F150; 2009 - 2014 F150; 2004 - 2008 F150 Ford Truck Enthusiasts Forums. We are looking to build around 475-500 hp, but gobs of torque and street manners. However, I knew a shop that specializes in not only porting heads, but has a real talent when porting Pro Apr 23, 2021 · speedmaster is a chinese head. Combustion Chamber: 60 cc Springs: 1. I bought them bare ($670) had stainless valves fitted, 3 angle valve job, plunge cut and hand blending into the valve seats and bench flowed ($925) , had them fitted last night with new ls7 lifters , 0. Drivetrain & Performance. The Pro Comp heads do notsee pic. Here is a link to Hughes Engineering that explains some of the quirks that they have seen. 050 . I know there are better ones out there (AFR, BRODIX, etc. that 327 block was cast about 3 miles from my house an assembled about 40 miles away in Flint, michigan. Pro-Comps and Patriots are cheap Chinese knock offs of guys like Dick Maskin at Dart, who put hundreds if not thousands of hours of development and testing into their heads. I`ve also read quality control on these heads aren`t that good, but most products made in china there isn`t a quality control, or not much of one. All I can say about procomp is Jan 4, 2005 · I should have my Pro Comp's back from the machine shop in a week or 2. 5:1 speed pro pistons, Crower 252/262 @. is the code still on the front top left of the block, it would look like this F 1222 KL the numbers an last two letters will be different. Some claim better than edelbrock. meantime I emailed speedmaster Mar 25, 2008 · The ProCrap 429/460 head uses a direct copy of the factory D3VE's 95cc combustion chamber, D3VE intake port, and essentially the factory iron exhaust port, too, but with a raised floor. they will perform good on any engine. Is it a nice as the CHI, that is a good question. The best bang for the buck head is going to be the P-51 if you want to stay with a standard style port. When you have the equipment to fix things such as improper pushrod hole locations, rock stud pad angle off 5 degrees, intake face angle not correct, and etc. 005 depending on wich valve you check. Nov 3, 2017 · 395 Windsor stroker, fully massaged Pro-Comp 190cc Heads, RPM Airgap, Demon Carb, Comp Cams Retro-Fit roller, Tubular front suspension, sn95 4-wheel disks. But if you trust the parts. That and a buck will get you a large coffee at McDonalds. im going to have my truck dynoed and i will see what power they make. All suggest buying them bare and have a quality machine shop assemble, checking tolerances. i think if you get them REAL cheap they are not bad. Mine had the seats machined too far down, so half the spark plug threads were exposed in the combustion chamber (they called for a 3/4" reach May 10, 2007 · As I was planning to spend big $$$$$ on my cast heads to have them reworked to the Cobra Jet Specs, I am now thinking of buying these Pro-Comp 460ci heads instead to go with my Scat 557ci Stroker kit, as I cannot afford to pay $4000. This is the 190cc, angled Dec 18, 2009 · I have tried two progressively stouter valve and spring combinations with EXACTLY the same result. The Fora platform includes forum software by XenForo. Motor is in a 1967 firebird. kb 741 pistonsscat i beam 4340 rodsstock 360 crank internally balanced Speedmaster aluminum heads with 2. I know of a guy with just a 468 ci fully ported edelbrock oval port heads. I have the LA heads. As a professional engine builder, you are build core castings. Dec 6, 2007 · Evidently, there were 3 different companies making the heads for pro-comp each having different molds and each having different chamber sizes. They're the 210/60cc ones I planned on building a 347 fuel injected motor so plenty of air is needed. 1003 301768468043 New set of complete Aluminum Big Block Chevy Pro Comp Motorsport Heads Produce up to 734 HP Out Of Box With Advanced Port Design Manufactured from 356-T6 aluminum Have Accessory holes to except factory accessories. . Dec 21, 2012 · C6 Tech/Performance - Procomp head mini review. This Flo-Tek head has a long list of high-end features, minus the hefty price tag. Distributor housing was undersized by over . Mar 12, 2009 · CNC Ported Big Block Ford 460 75cc/295cc 2. 460" Dual Spring Assembly. #4 heads from a 330ci SBO motor has 60cc chambers, that I could use a stock replacement piston, and gain quite a bit of compression over the the 403 heads. I said screw it and went with A460's. 331ci, 400hp, dyno tested, every time. If you really trust a company, you will trust that they are only selling castings that passed their inspections and that they assembled them with quality components and a decent valve job. The advanced port design allows greater flow. 70 gears Mar 1, 2009 · OCT 09 ISSUE OF MM&FF They took a junk yard 302, trick flow cam, these exact same pro comp heads, roller tip rockers, eglin hardened pushrods, parker funnel intake, and a 750 holley carb and made 399hp 363lb of tq and it only cost them $1,064. 003-. The question was asked to start this thread "Are pro comp heads any good?" Apr 4, 2007 · Small Block V8 (221, 260, 289, 5. It has a mild . Jomar 1113 for 26 degree intake valve heads or 1114 for 24 degree stud girdles are very good. One is copied after the Edelbrock "Victor" head with a few differences The other is a cross between the "Edelbrock RPM" and a "440 Source Stealth" head. they have gotten better. Pro Comp heads? good or bad. 3000lbs and I am running 10. 90 at 122mph and 6. Save Share Reply Quote Like Oct 10, 2010 · Pro Comp Heads The 1967 - 1972 Chevrolet & GMC Pickups Message Board Pro Comp Heads - The 1947 - Present Chevrolet & GMC Truck Message Board Network Register or Log In To remove these advertisements. PC3002S/AC FF281. they are standard port cnc`d , flowed 350 on the intake @ 600 lift. A lot of people who complain about them want their $700 heads to work as well as a set of $1500 heads, and it simply isn’t going to happen. ProComp Part number PC3021. and those have been around and used on enough builds to know what to expect. The casting and Feb 16, 2010 · The old adage is true, $1500 gets you a set of name brand heads that have been fully polished and machined, $700 gets you similar procomp heads that have been cast and no port work has been done. with a 750 carb and a 289 torker intake. Then right around 2 months later I took them to get a valve job, (parts cost $550 for Pro Flow valves, studs, guides etc)(3-angle valve job+milling labor cost $250). Jun 13, 2007 · I just acquired a pair of Pro Comp Pc3037 heads from a trade. Pro Action in New Zealand had money problems about 3 years ago, filed for bankruptcy which in NZ shuts down your whole operation. Oct 21, 2009 · I have run several sets of ProComp Heads on the sbc's. 66 GTO Nostalgia Super Stock/Street Legal Car 421 CID, stock block, Wenzler Intake, 2- Carter 750 AFB's, 3. They "stepped up" to the Pro Comp heads and lost 1/2 second They put the World heads back on and got their lost ET back and then eventually went w/ some AFR's and picked up over 1/2 sec over the World heads. I`ve read nightmare reviews and good reviews, but I will say the bad ones outnumbered the good. 4150 style holley on a ported 454R intake. chinese castings used to be junk. 64cc chambers 210 cc runners. 5X10. Mar 9, 2022 · A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. I hope my experience helps others not to buy Pro Comp because my experience with both heads and distributors has been a very, very bad one Jan 4, 2012 · Pro comp heads I have the new revised 210/ 64 pro comp heads on my sbc 383. I don't use Edelbrock heads anymore. I trim bolt holes as I need to as a help in getting the port fit that is best. maybe you'll get good ones or maybe you'll get two nice boat anchors. Oct 30, 2018 · That was info i got from Mike when I spoke to him about the heads. 494” length 4317-8 exhaust valve, 1. but he had to replace all the springs. Mar 17, 2010 · The Pro Comp Cleveland is really really a nice casting. Jun 29, 2006 · BBC Pro-Comp Heads/Flow Numbers. I've got a 302 out of a mid 70's Ford F150 that I'm planning to put Aluminum heads on and have a few questions that I was hoping you experts could answer. Why anyone would even consider that Chinese Pro Comp garbage is beyond me. It just the luck of the draw. knockoff heads, 282S cam, Stealth intake, Bigs Stage 5 750DP, Accufab headers, Scattershield, Caltracs. I plan on disassembling them and checking everything out next week. Aug 1, 2020 · My "budget" 360 in my truck has a set of 308 heads with 2. 006” and meter block idle mix screw was cocked and off center with non existing seat. Feb 25, 2009 · reply to 454cutlass-procomp heads I use electronics pro comp heads on my 504 chevy and have never had any problems. I may regret it but I've seen too many mixed reviews not to try for myself. 25” valve. Jul 28, 2009 · You get what you pay for in life. 95 on a narrow tire Lots of people wouldn't dare entertain the thought of edelbrock 290cc oval ported heads. 76 Exhaust Valve 75cc Combustion Chamber 295cc Intake Runner Procomp heads are asssembled by skilled professionals and use the best components in the industry. Jump to Latest The Fora platform includes forum software by XenForo. Misaligned ports, problems with the guides and even in some instances bolt holes weren't drilled. i was just wundering if any of you guys have ever used them or what kind of things you've heard about them. I am anxious to do some more measuring to see what else might be wrong. heads have good parts in them, and has a comp solid roller, chain and lifter, but everything else is *****. 8 with a trick flow cam, F. Dec 1, 2006 · Name's Darl Jeffries, of D&J Machine in Phoenix AZ. I’m talking Chinese heads in general. They seem like a great value for the price and flow very well. Sep 25, 2009 · I know the concensus on procomp brand products, especially their cylinder heads. Feb 18, 2001 · I just acquired a pair of Pro Comp Pc3037 heads from a trade. Jun 23, 2011 · The reviews of Procomp heads that I've read tend to strongly indicate the heads are designed to compliment relatively large displacements, high-lift valvetrain and high rpm -- which can be fine if you're building a drag-racing vehicle that you trailer to and from the strip, but that's not what you want in a vehicle that you drive 100-or-more mil Oct 31, 2008 · I recently picked up a 496 BBC with ProComp aluminum rect heads. It has their block, rotator, heads, intake etc. My main goal is to have rock solid reliability. they were on a 350 stock bottom end 11-1 Apr 26, 2011 · If you want to point to some areas that REALLY affects the economy, look no further than to the fedgov's waste, the money dope smokers/sniffers/shooters gladly send out of the country that supports every bad thing imaginable- from terrorists in the middle East to guerrilla war in South America to the the thugs running the Mexican borders, to foreign governments who spend the money on arms to Jun 20, 2008 · I have purchased a pair of procomp cylinder heads thier 64cc chamber/210cc intake runner with 202/160 valves. 60 set of aluminum 302\351w heads for 649. the heads are really inexpensive for aluminum heads only 700 for the set assembled. 2K views 10 replies 5 participants last post by BOOT77 Feb 25, 2022 Aug 2, 2022 · I do know a guy that bought a set of cheap procomp heads off of ebay that had those black colored valves and one failed in a short amount of time like mentioned but luckily an old short block and they didn't really look like anything special as far as ports and combustion chamber , anyway same guy bought a new set of Speedway heads just in the in this thread in this sub-forum in the entire site Advanced Search Cancel CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. I'll buy more as they are good heads regardless of those few parrots who claim to know otherwise. All Procomp aluminum cylinder heads feature the following: High Grade Aluminum; Bronze Valve Guides; Hardened Seats; Advanced Port Design for greater flow May 24, 2018 · A pair of bare procomp boss429 heads are $3,000. There are dozens of good aluminum heads on the market, Edelbrock, Dart, Profiler, Brodix, AFR, GM Performance Parts, just to name a few. 40 over in my 73 now Aug 4, 2007 · I was initially planning buying some Iron head 781's or 049's but after purchacing the heads, larger valves, port work and labor to be adequate these might be a nice alternative. Anyway I have been chasing down an oil consumption issue and this weekend I finally going to have time to take off the intake and check out a few things including intake gasket, swapping out to a new intake etc. 00 $600. 4 compression, 180cc homeported Chinese heads, funnel web, t5z, 4. "AFR's 185cc SBF Enforcer Cylinder heads feature our Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. 040" MLS head gaskets Feb 1, 2009 · Here, we have two sets of Pro Comp Heads that are going to be put to the test to see if the CNC-porting is worth it's price. 65 mustang coupe, 306, 10. If I use their stuff at all, it's bare castings that get the guides checked and clearanced, the valve job redone to a proper high performance valve job and all of the hardware Oct 15, 2020 · I know Elgin latest valves are made in China and China has improved in some areas. Come join the discussion about restoration, engine swaps, reviews, performance, modifications, classifieds, troubleshooting, maintenance, and more! Open to all models including Belair, 210, 150, Sedans, and Nomads. edges werent chamfered. so I just wouldn’t use them on my own build. It will flow more air than a chi head when done right. These LS3 heads are a "Raised runner" design, therefore the GM rocker stands do not fit. 25” dia. 00 Oct 31, 2008 · You have a very similar setup to what I have. There's some guy on a YouTube vid that goes on and on about how f'ed up ProComp/Speedmaster studs are, thus how crappy ProComp/Speedmaster is you know the usual yada, yada, yada crap that gushes Jul 9, 2020 · A forum community dedicated to 1955, 1956, and 1957 Chevy owners and enthusiasts. Oct 9, 2012 · Do a Google search for "Pro Comp Heads Reviews" and read the Ford Muscle and SBFTech reviews on them. about 3 years ago, all 3 comapnies quit making the head and took the original molds with them Feb 23, 2009 · Got to test a customer supplied set last year using an 11-451-8 H. On the dyno my pump gas 496 made 700HP @ 6300 and 650TQ . Jan 17, 2010 · Pro Comp has a sketchy is best track record and most of their parts are known for very poor quality. 628-before lash (. out of the box the heads werent to great. the would be going on a 79 l-82, with dual exhaust magnaflow thanks Oct 10, 2007 · Engine Mods - ProComp 320cc BBC Aluminum Head - Does anyone have experience with these heads? I see them on Ebay for $1000-1200 a pair complete. Dec 18, 2009 · So, I bought these Pro Comp heads, 210cc/SBF, for $420. ) but they are more than twice the money and dont seem Apr 29, 2020 · Speedmaster heads Pontiac - Race. THe steel seems to work fine. I guess if they are done right you can't argue with performance. Nov 20, 2007 · Aside from the good info on procomp heads, I think its VERY interesting to see that Vortec 170cc intake ports only give up 5hp to the 180cc Brodix AND the vortecs give you only 10 less ft-lbs, but it comes at a full 1000 rpms lower. Feb 10, 2007 · Well my wallet fianaly allowed me to have my Procomp heads fixed (they where unusable the way they where). In addition, they have hardened seats and bronze valve guides. Oct 25, 2021 · In my experience with low cost chinese knockoffs, ProComp is the name that a chinese company that counterfeits American products changed to after major problems. guy paid 5k for complete engine. 620 lift on a 108CL, Holley strip Dominator intake, Holley 850DP, TH400 with a 4500 nitrous converter, 4:10 gears and 29. (it took ten sets)Yeah that back story never made the article. By the time you replace the valve seats and valve guides in the pro comp heads you are spending more than the cost difference. VerticalScope Inc. 1001/2 351633229200 291996169160 New Complete set of Aluminum Small Block Chevy Motorsport heads. 320cc Intake Runners 119cc Chambers Spring pads are machined to 1. I was hoping for some 6. after a visual inspection the only minor Jun 8, 2007 · From what I understand, there made in china but said to be made is aussie land down under. The bolt is exposed to the oil and not sealed like stock heads. I'm happy with the results! Jul 29, 2007 · DRP heads are pro-comp heads assembled by DRP. 250 int. I have had them 3 years and so far no problems. The steel is on a 11. Take it with a grain of salt. I get a chuckle every time I see some pro comp combustion chamber. Nov 27, 2012 · A good friend of mine advise us to never get involved as a contractor for a test for one of these magazine articles. Apr 23, 2010 · Brand new in box Pro Comp Aluminum Heads, complete with Valves, Springs, etc. From what I know of those that have bought them (including personal friend), the castings are fine. Procomp heads are available bare, complete and fully CNC machined. I wish I had got the casting number off of the heads when the valve covers were off. Aug 6, 2019 · The SM heads are just copies of the Eddy’s. Very poor machining to the point of being unusable. Not sure these SM heads I have are the right ones for our particular build. also here is a link to play around with on some different rear gears if you want. Has any-one used these Pro-Comp Alloy heads, Any good Dec 29, 2006 · did anyone know anything abt these pro comp aluminum head. I assume that having lighter valvetrain components like aluminum would help the engine wind up easier. Check the valve stem clearance. Specs are below. 77 in the 1/4. 018 lash) I`m well pleased w/ them, altho we changed the retainers and keepers for some Pro Comp changed their name to speedmaster due to all of their bad publicity from poor quality products. I am using a Felpro 1206 gasket. 016-. 5 Aug 17, 2005 · :drive: HEY Re PROCOMP HEADS - you might want to check out Oct '09 Super Chevy edition for the article "CHUMP CHANGE CHALLENGE" in which they use a set of PROCOMP 109cc/70cc 2. . But, I have to be honest. I have a brief video of what I do when cleaning them up. GM heads have a flat surface for gasket contact all the way around the hole for a good seal. Eddy Victor 340 intake worked on my IMM Pac 1903 springsCrane 1. PRO COMP HEADS ARE JUNK, PERIOD. I know Hughes offers 75 bucks a side plus shipping to CNC them correct I also pk'ed up their off-set rockers. Aug 6, 2019 · There are always reviews or experiences that will both support a part or beat it up. The ProComp BBO heads have 70cc (? questionable?) chambers, and I would need to use the KB Hyper pistons with a Jul 19, 2020 · The Pro Comps look just like a set of Patriots i bought some years back and im pretty sure the pro comps are rebadged Patriots. The more I research the more I figure out that I know a Oct 14, 2014 · I bought a set of bare Pro Comp heads from eBay for $420. Jul 4, 2007 · pro comp heads good, bad or ugly? I have a stock 351w with stock cylinder heads. 5. he got 500 for his 5k engine. May 23, 2011 · i have a set of the procomp 210's and have performed well for me the best thing to do with them is buy them bare and have your machine shop to put valves and springs to your camshaft. 5. Feb 20, 2021 · Do NOT trust the springs that are on the heads, unless they are name brand springs - if they are the springs that came with the heads, toss them in the trash. IDK if he frequents this board any more. Sep 18, 2020 · We may use them on our 440. Sep 24, 2012 · Re: pro comp 15 degree heads ? Post by SchmidtMotorWorks » Wed Sep 26, 2012 1:21 am BrazilianZ28Camaro wrote: A few day ago, I saw a set of Pro-Junk HFT lifters with ten minutes of usage. _____ Dennis 65' Stang 393 stroker, Toploader 4 spd, 3:50 rear. We also did a head swap on the dyno for a guy. 200 , and . roller and 10. it is costly to the shop owner. Oct 17, 2004 · Jeg's has just started selling Pro Comp bare heads and their item description states "Producing 500+ HP out of the box" '67 Mustang coupe New Dart 427 under construction: AFR 205's-Ported Victor Jr. Mine is a 468 with the Pro Comp 320 heads, Manley valves and Isky springs, 10. PC3021C/FF281. Jan 29, 2007 · After 2 sets of valve covers I figured it outthe area around the bolt or screw holes is different than stock GM heads. Jun 6, 2014 · Pistons are undecided, due to different chamber volumes between the two heads. Victor Jr. May sell them and dump the money into Apr 2, 2020 · They are identified as such because ProComp/Speedmaster also sells standard length bolt and stud sets used by other brands of heads for the BBC. It stands to reason that all of their parts are therefore suspect. Aug 24, 2006 · I agree with Paul. , 111 Peter Street, Suite 600, Toronto Dec 12, 2017 · So last year I received a pair of "SpeedMaster" Heads as a gift. 55 Posi-4wheel disc brakes Nov 24, 2020 · Plus I didn't like the odd design of the valley tray. Oct 18, 2017 · The ProComp heads were junk and not comparable to these. Hardened valve seat inserts w/ multi angle seats. You need to do at least some light porting on the stock heads, the exhaust as cast is nasty. 42 in the 1/4 and then put on the pro comp aluminum heads and went 11. Go to any other Ford forum (probably GM OR CHRYSLER, also) and they will tell you the SAME THING. If they were already in some of their heads, then I wouldn't use em on a good short block but I prob would just sell their heads instead of using. Do you know what type of valves, springs, retainers, etc. They're very good heads especially for the money. - I was interested in taking my stock LS-2 up a level or too. 8/351W) - Valve sizes and Procomp Heads - Any good? - Hey there. If you spent $500-700 plus on the Irons head. 00 total, that was including price of motor as well. Good ain't cheap, and cheap ain't good. Jan 7, 2010 · I have had the procomps aluminum and still have the steel procomps. Their valve seats were very shallow and fell out and their valve guides weren't a good quality bronze so they wore out quickly since their rocker studs had a lot of run out and misaligned the rocker. The 1820 are an upgrade if you want. Fudge factor. Jan 5, 2011 · The actual casting quality of the Pro Comp heads seems to be pretty darn nice. The short block has all good stuff, no questions there. -----Procomp Motorsport's 3021 BIG BLOCK CHEVY, ASSEMBLED, Aluminum Cylinder Heads Jan 19, 2014 · C3 Tech/Performance - pro comp heads - i am looking at aftermarket heads and have read mixed reviews on these can anyone give me their thoughts on pro-comp heads. 56 gears in a 9 inch locker Dec 8, 2013 · you all might be interested in this: we flowed my procomp victor knock offs. make up the complete head? This is important information if you plan on putting a cam in the motor. Sep 18, 2020 · Skip White states these are not ProComp castings in their text here: SBC CHEVY 350 383 406 NKB-200cc ALUMINUM HEADS 68cc STRAIGHT PLUG NKB-274-68cc | Skip White Performance - We have the best prices you will ever find for aluminum heads, rotating assemblies and strokers Know anything about NKB's ? Jan 10, 2017 · My buddy built an entire Procrap engine for his sand drag blazer. -Mighty Demon 825-Cam TBD-Miller rockers-Hooker Super Comps-3" exhaust-AOD w/non lock-up 3000 stall-3. pro comp heads, an intake valve head popped off in his driveway at idle. the chamber sizes were 74cc, 95cc, and 84cc. 1 comp. valve and 1. i almost bought a blown 496. Here is an ebay auction of them, anything that has PC3001 stamped into the casting above the exhaust port is a procomp head. Oct 18, 2006 · Why not go with a set of "tried and true" heads like AFR, Canfields, Edelbrock, Trickflowsomething you already know that is good quality. ports werent to nice at the gasket surface and the pushrod clearance didnt work to well with my application. 7 ratio1620 have worked with no issues for me on several bracket race BBC engines. 77@136. If the CHI is a 10 the procomp is a 9. 600 solid roller by lunati. 12:1 355 with a solid flat tappet with ported Pro comps. the diff seems minimal for Alum. I have manufacturers flow numbers if you want them but you can get them off of Procomp's website. my Feb 16, 2013 · 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - Pro Comp heads arrived today! - I'm still a bit cautious but for $550 to my door I have to try. cprgarage. Going back to the original question, Did you torque the bolts correctly in the right sequence, scrape off all of the old gasket, re-torque after a few heat cycles, did you use dowel pins, what thickness head Mar 22, 2009 · ryans88gt, with all due respect to you, posts as yours get some guys confused and is why I get messages, the pc heads can use stuffed 4V-A3 intakes and the chi heads you refer to are NOT CNC as mine are, chi cnc versions are listed on there site at about $4000 USD, as you can see in my pics my avg heads are practicaly the same width as stock 4V Mar 3, 2020 · 360 4. I intend on revving the engine up between 6500-7000 RPM. Might want to make sure the intake seats have been cut to accommodate the 2. More details and photos on the test only in Muscle Mustang & Fast Fords May 24, 2014 · Same combo with nearly stock 041s will make 375 HP. Dec 21, 2009 · Here's the Specs on the Pro Comp Heads PC 3037 & 3038 COMPLETE HEAD-FEATURES & COMPONENTS Cylinder Heads PRO COMP 210CC (3038) Intake Runner Aluminum Cylinder Heads With 60cc Combustion Chambers. All said and done flowed 355 @500lift and 408 @700. All Procomp aluminum cylinder heads feature the following: High Grade Aluminum; Bronze Valve Guides; Hardened Seats; Advanced Port Design for greater flow Dec 6, 2005 · But in another forum there was a post made by someone who is a Pro Comp distributor through their shop and they listed off a bunch of cylinder heads - small and big Chevy, small Ford, etc. Dec 22, 2021 · It sucks to get old but at least the expectations are lower. If you did not know the head was Chinese it would be really hard to tell. Swapped heads for a set of AFR 195s horsepower leaped to 547 HP at 7700 rpm. I won't even tell you about my Pro Comp distributor nightmare but that piece of crap ended up in the trash. Poor quality control on the SpeedMaster heads. Feb 4, 2021 · But, AFR is passing off ProComp's as their own to get a piece of the budget heads market. 7/20/16 I then heard a lot about intake pushrod angles and they need to be opened up. the Patriots kicked butt when they were around but they had QC issues, Hot Rod magazine did a 8 head $1000ish price point shoot out some years back and everybody was blowin away when the patriots over all and especially on price beat everybody, they were hanging with Mar 22, 2010 · The short answer is that the iron heads you already have will make equal or _more_ hp. Builder bought them bare, full CNC treatment. May 30, 2010 · Again, NEVER believe a magazine that takes ad dollars from a manufacturer they are "testing". :good: "Never drive faster than your guardian Angel can fly. Aug 30, 2009 · A buddy of mine runs a set of pro comp heads on his sbc, and the rocker boss placement is off or not straight. 740 to except the largest roller Mar 17, 2020 · The NKB as with the Assault, Bro Speed, Quantico and some others including the ProComp/Speedmaster which is a little different will all exhibit difficulty intake gasket alignment and fit. Jan 31, 2014 · C3 Tech/Performance - pro comp heads - i am looking at aftermarket heads and have read mixed reviews on these can anyone give me their thoughts on pro-comp heads. Being used heads, most likely they will need re-surfacing and a valve job. 90 Gears, Full Factory Interior, Full Exhaust, Stock Suspension 3750LBS 9. 95 in the 1/8 th @ 99mph I bought the heads bare and put in my own hardware. Feb 16, 2010 · Nobody on this forum is trying to insult any other nationality or person in general. Also, double check the spark plug seats. Good luck with it. my motor is a 347 from chp with the pro comp 210 heads and a trick flow cam. not bad in my opinion. pro comp valves: 4324-8 intake valve, 2. 00 well spent. Here are the specs: These heads feature a multi-angle seat design for performance valve springs. 607/. Thus far no one has shown that to be the case. 2 months later the engine was apart for a new set of pistons, 4 sleeves (only one required for the actual damage) and a new set of yella terra heads. my street roller is . we back cut the intakes a small amount, made 10 cfm dif. i see them all over ebay and i was wondering if anyone had used them and if they are any good. R. com merchandise Sep 28, 2008 · Most heads by pro comp or equivalent I have came across seem to have better castings than Dart heads which are sometimes double the price. 055 intake and 1. But the procomp/speedmaster name is so bad, I wouldn't trust their valves if I was gonna buy just valves. " Mar 4, 2010 · Forums. Performance, Engines & Troubleshooting Budget 460 build, pro comp heads. the would be going on a 79 l-82, with dual exhaust magnaflow thanks Nov 26, 2007 · A friend of mine has a 392" sbf in a Ranger that had World iron heads on it. I have been putting aside various parts and plan to do a complete install of everything before spring. I with a 90mm t-body. Have a ton of passes on them and no problems. Jan 19, 2007 · Pro Comp used New Zealand made Pro Action cylinders heads as a basis to create thier "knock-offs". Nov 23, 2007 · Location: VA Hospital, Dallas, Tx (214 302 1924) cell-972-464-7400 CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. 5 rockersMP race electronic distributor with MSD 7-2 I think. " 30+ years experience and I'm MOS & STM certified. 60 exhaust MP 590 camshaft. Bottom line is they are junk, and he regrets buying them. It has a mild cam and is bored 30 over i have been looking at some pro comp aluminum cylinder heads that are complete part # 3037. Jul 24, 2018 · Ok so I've now done the full test with the procomp ls1 cnc heads (eBay heads, speed master heads - part number PC3017). @ . Oct 25, 2021 · There are numbers on them too. They were saying how they have the least amount of trouble with the Ford heads compared to the rest. Jun 4, 2011 · I had a guy buy pro comp heads for a holden V8, they wher 800 dollars cheaper than yella terra heads. 00 A pair of Kaase Boss 429 heads bare are $3,600. I've seen plenty of broken off rocker stud bosses on aluminum heads (all different brands). These are 320cc Rect. Mill the heads for sure to get them flat. 60 valves with some bowl work and a little milling. Was wondering if anyone have used them or know anything about them. Port BBC Heads with 115cc Open Chambers. 070 bore. I received the POS heads exactly as planned. I've seen some good running cars at the track running them. 99 Apr 4, 2008 · pro-comp heads i have used pro-comp heads in the past for small blocks and was never impressed with the heads, however i just bought a set of big block pro-comp heads for a cutomers engine and i am impressed these are part# pc-3021, 320 cc intake runner, 115cc chambers, 2. so these heads have to be pretty good i would think. Jan 10, 2010 · I also had trouble finding a cheap pair of heads for a 351 w ford engine so I cant find cast heads for a good price but pro comp can sell me a set of 210 intake 60cc chamber 2. I don't have any experience with the Procomp heads but I did hear good and bad reports about them. 13:5:1 compression, BIG COMP solid roller. I had a GM 350 come in that every part in it except for the block was a chinese knockoff. These days I'd use TF 240 for street, TF 270 heads for race up to 750 hp and then Indy heads if you want to make more than 800 hp. May 4, 2010 · i was wondering if anyone had any problems out of sbf pro comp aluminum heads with 210 runners and with 70 cc exhaust and 60 cc chamber with 202/160 vales and 600 lift has had any problem with their efi pro comp spyder intake bolting up the block has not been milled and neither has the heads the head gaskets are . Aug 5, 2021 · I have trickflow 11r 190 cnc ported cylinder heads, comp cam xe274hr, and hydraulic link bar roller lifters. Sold individually. The heads you have are the same as the 78cc CNC version, yours are just not CNC'd. Jul 29, 2013 · 1968 Fastback: 331 stroker, FTI cam, N351 Heads with a few upgrades, 4r70w w/3600 stall, 9" locker w/3. i know every one says the are cheap junk but i had part of a piston break and it hammered the head up but did not crack it. Thick deck - Can be used with Nitrous or Superchargers 190cc Intake Runners 64cc Chambers Straight & Angle plug Available. When they first came out there were problems with them like any other new manufactor, but over time they have actually really come around. May 7, 2007 · Have any of you gents heard any bad reports about "Pro Comp" Aluminum heads # PC- 3021. Sep 28, 2023 · Believe it or not. Lesson learned Jul 25, 2007 · Anyone know anything about Pro Comp aluminum heads?? My cousin is planning on building a 429 (boo hiss) for his 70 torino. they are made in australia. Owner bracket raced it and put alum heads on it before Jun 6, 2022 · Comp Cams 1. Taking 5000-10000 dollars from a manufacturer then telling everyone in the community, the product is sub par is probably not going to go over well the next time you contact the manufacturer to renew and send in another 5000-10000 dollars. 19 Intake Valve 1. 02/1. That was before the TF heads were available so I bought EZ heads after selling the Victor heads. So much that his stud girdle is so tight when it's on it moves the lash by . I’m sure over 50% of the assembled heads that get sold get run just as they come right ootb. He knows the owner of Pro Comp, and uses these heads exclusively on his low and mid budget crate motors. Jan 4, 2007 · I also say get the TFS Street heads before you buy the Pro-Comp's. i only heard on 1 guy that used them and he had world product heads on his motor that ran 11. chinese VALVES are not to be trusted. Nov 8, 2020 · You don't need to spend a fortune to get a top-performing, lightweight aluminum cylinder head for your small-block Ford V8. A friend of mine bought a set and then was told after the fact that they are a very poor item. 88” dia. My dad has used a few 350 heads and a set of 302 heads. From a tq/hp standpoint, especially in the 450-500hp range, I don’t think that there would be much difference between the two. You know this. 51 gm head gasket and Feb 18, 2010 · a friends 331 ford stroker motor with pro comp heads, had it dynoed at jack merkel and the motor turned 447 hp 410 fl lbs tq. I have several customer, large shops and WD's, that have gone through nitemare hours fixing these heads. qhh smjqyhhi imftpz xscv ugdmb iqd ndwnab eezwwnc hxww sqytn