pro comp heads

5mustang0 · February 6th, 2009, 07:46 PM

Whats your guys opinions on pro comp heads?

89LX347 · February 6th, 2009, 08:33 PM

might wanna go ahead and use the search option on this one

JBIGBOOTSY · February 6th, 2009, 11:03 PM

I have a set, 215cc, good power gain, went on fine, good castings. I did use good hardware and springs tho.

2002BLGT · February 6th, 2009, 11:49 PM

Originally Posted by JBIGBOOTSY

I have a set, 215cc, good power gain, went on fine, good castings. I did use good hardware and springs tho.

can you post more about your setup and what kind of times you are running with them ?

86er · February 7th, 2009, 12:08 AM

garbage

flyin ryan · February 7th, 2009, 02:02 AM

go to Web Page Re-director and search there are many many threads on how horrible the quality is on these heads and how people didn't gain nearly as much as they shoul dhave when compared to other heads of the same caliber.

JBIGBOOTSY · February 7th, 2009, 06:58 AM

This is the only pick I have that the casting arn't that bad. Really they arnt.
All the bolts lined up suprise free install.

215cc runners, 2.02/1.64" stud mount,64cc chambers. 1.45"125#seat pressure, comp cams Stainless 1.6. trickflow pushrods.

I had a stock shortblock, I fly cut my pistons with a Dremmel. PP Typhoon intake, 65mm tb, 30# inj, 76mm maf.

Im not gonna be posting times, just the head swap gained me 7mph, over ported p heads, with 10:1. my compression droped with the procomp to just over 8.5:1

r.barn · February 7th, 2009, 12:28 PM

You have a 50/50 shot on getting hunk-a junk castings with the Pro-Comps

Some people use them without issues, some people have nothing but headaches.

Get what you pay for.

And...... is it just me or are the exhaust and intake actually touching in
the above picture ? ...... looks like they are to me ...... not good.

Twisted Wedge
RHS - CompCams ---- the old Pro-Topline heads for Austrl.
AFR
Dart

are the only heads I would mess with.

86er · February 7th, 2009, 12:32 PM

im loving my edlebrock Vic Jr's

86er · February 7th, 2009, 12:33 PM

Originally Posted by r.barn

You have a 50/50 shot on getting hunk-a junk castings with the Pro-Comps

Some people use them without issues, some people have nothing but headaches.

Get what you pay for.

And...... is it just me or are the exhaust and intake actually touching in
the above picture ? ...... looks like they are to me ...... not good.

Twisted Wedge
RHS - CompCams ---- the old Pro-Topline heads for Austrl.
AFR
Dart

are the only heads I would mess with.

you look close enough, you can see its close, but they dont touch

JBIGBOOTSY · February 7th, 2009, 05:40 PM

I'm just courious, but how many people leaving advise have used the heads?

The heads flow in the 260s @.550, and thats with the valve guide extending into the port .25". Not the best in flow numbers, but good for a 700 dollar set of heads, IMO.

If you ask me, I say they only suffer in the flow area. They have been reliable, under race conditions for me?

5mustang0 · February 7th, 2009, 06:10 PM

i just need a better set of heads the stock set of heads on my 351 r terable

86er · February 7th, 2009, 06:17 PM

ive worked on two cars with them, valves didnt seal, the holes for the studs werent straight caused the rockers to sit katywonker, the spring perches were three different heights

hows that?

JBIGBOOTSY · February 7th, 2009, 06:39 PM

Originally Posted by 86er

ive worked on two cars with them, valves didnt seal, the holes for the studs werent straight caused the rockers to sit katywonker, the spring perches were three different heights

hows that?

What size were the rocker studs? What was the valve length?

86er · February 7th, 2009, 06:52 PM

couldnt tell you the valve length it had 3/8 studs.

the holes for the studs had almost a 2* rake to them left to right.

JBIGBOOTSY · February 7th, 2009, 06:55 PM

Originally Posted by 86er

couldnt tell you the valve length it had 3/8 studs.

the holes for the studs had almost a 2* rake to them left to right.

How did you find that out?

86er · February 7th, 2009, 06:59 PM

well when you put the stud in, instead of sitting vertical with the others, all 8 studs looked like the leaning tower of pisa, so off to the machine shop we went and low and behold they were all off

86er · February 7th, 2009, 06:59 PM

before you question the machine shop, it was Huntsville Engine, look them up if you doubt their work too

M L Struck · February 7th, 2009, 07:04 PM

to many good heads on the market to waist time and money on something with so many bad reviews "50/50" chance dosn't sound to good to me. I have no expereance with these heads but I have heard a ton of back and forth talk about them, so stick with a trick flow, edlebrock, afr, canfields.

5mustang0 · February 7th, 2009, 07:28 PM

so ur saying that i shouldn't even bother with procomp?

February 6th, 2009, 07:46 PM	#1
5mustang0 Regular Join Date: May 2007 Location: Ohio Posts: 253 iTrader: 0 reviews	pro comp heads Whats your guys opinions on pro comp heads?

February 6th, 2009, 08:33 PM	#2
89LX347 Hardcore Enthusiast Join Date: Apr 2007 Posts: 1,304 iTrader: 0 reviews	might wanna go ahead and use the search option on this one __________________ I believe in art when it is not seen. I believe in music when it is not audible. I believe in God when He is silent.

February 6th, 2009, 11:03 PM	#3
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,392 iTrader: 0 reviews	I have a set, 215cc, good power gain, went on fine, good castings. I did use good hardware and springs tho. __________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

February 7th, 2009, 12:08 AM	#5
86er I Post Entirely Way Too Much Join Date: Nov 2006 Location: Memphis, TN Posts: 7,140 iTrader: 0 reviews	garbage __________________ Just a truck 5.4 3v: 264hp 317ft lbs rock stock piecing together the next project faster than your first sexual experience

February 7th, 2009, 06:58 AM	#7
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,392 iTrader: 0 reviews	This is the only pick I have that the casting arn't that bad. Really they arnt. All the bolts lined up suprise free install. 215cc runners, 2.02/1.64" stud mount,64cc chambers. 1.45"125#seat pressure, comp cams Stainless 1.6. trickflow pushrods. I had a stock shortblock, I fly cut my pistons with a Dremmel. PP Typhoon intake, 65mm tb, 30# inj, 76mm maf. Im not gonna be posting times, just the head swap gained me 7mph, over ported p heads, with 10:1. my compression droped with the procomp to just over 8.5:1 __________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

February 7th, 2009, 02:02 AM	#6
flyin ryan Banned Join Date: Jun 2008 Posts: 3,387 iTrader: 0 reviews	go to Web Page Re-director and search there are many many threads on how horrible the quality is on these heads and how people didn't gain nearly as much as they shoul dhave when compared to other heads of the same caliber.

February 7th, 2009, 12:28 PM	#8
r.barn Regular 1989 LX Vert - 1993 Notch Fast Join Date: May 2008 Location: Houston Posts: 398 iTrader: 0 reviews	You have a 50/50 shot on getting hunk-a junk castings with the Pro-Comps Some people use them without issues, some people have nothing but headaches. Get what you pay for. And...... is it just me or are the exhaust and intake actually touching in the above picture ? ...... looks like they are to me ...... not good. Twisted Wedge RHS - CompCams ---- the old Pro-Topline heads for Austrl. AFR Dart are the only heads I would mess with. __________________ The last President elected in anger of previous President was ....... Jimmy Carter God Help Us

February 7th, 2009, 12:32 PM	#9
86er I Post Entirely Way Too Much Join Date: Nov 2006 Location: Memphis, TN Posts: 7,140 iTrader: 0 reviews	im loving my edlebrock Vic Jr's __________________ Just a truck 5.4 3v: 264hp 317ft lbs rock stock piecing together the next project faster than your first sexual experience

February 7th, 2009, 05:40 PM	#11
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,392 iTrader: 0 reviews	I'm just courious, but how many people leaving advise have used the heads? The heads flow in the 260s @.550, and thats with the valve guide extending into the port .25". Not the best in flow numbers, but good for a 700 dollar set of heads, IMO. If you ask me, I say they only suffer in the flow area. They have been reliable, under race conditions for me? __________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

February 7th, 2009, 06:10 PM	#12
5mustang0 Regular Join Date: May 2007 Location: Ohio Posts: 253 iTrader: 0 reviews	i just need a better set of heads the stock set of heads on my 351 r terable

February 7th, 2009, 06:17 PM	#13
86er I Post Entirely Way Too Much Join Date: Nov 2006 Location: Memphis, TN Posts: 7,140 iTrader: 0 reviews	ive worked on two cars with them, valves didnt seal, the holes for the studs werent straight caused the rockers to sit katywonker, the spring perches were three different heights hows that? __________________ Just a truck 5.4 3v: 264hp 317ft lbs rock stock piecing together the next project faster than your first sexual experience

February 7th, 2009, 06:52 PM	#15
86er I Post Entirely Way Too Much Join Date: Nov 2006 Location: Memphis, TN Posts: 7,140 iTrader: 0 reviews	couldnt tell you the valve length it had 3/8 studs. the holes for the studs had almost a 2* rake to them left to right. __________________ Just a truck 5.4 3v: 264hp 317ft lbs rock stock piecing together the next project faster than your first sexual experience

February 7th, 2009, 06:59 PM	#17
86er I Post Entirely Way Too Much Join Date: Nov 2006 Location: Memphis, TN Posts: 7,140 iTrader: 0 reviews	well when you put the stud in, instead of sitting vertical with the others, all 8 studs looked like the leaning tower of pisa, so off to the machine shop we went and low and behold they were all off __________________ Just a truck 5.4 3v: 264hp 317ft lbs rock stock piecing together the next project faster than your first sexual experience Last edited by 86er; February 7th, 2009 at 07:20 PM.

February 7th, 2009, 07:04 PM	#19
M L Struck Hardcore Enthusiast 85 GT/86 SVO/2010 GT500 Join Date: Oct 2008 Location: Rossville IN Posts: 1,183 iTrader: 0 reviews	to many good heads on the market to waist time and money on something with so many bad reviews "50/50" chance dosn't sound to good to me. I have no expereance with these heads but I have heard a ton of back and forth talk about them, so stick with a trick flow, edlebrock, afr, canfields.

February 7th, 2009, 07:28 PM	#20
5mustang0 Regular Join Date: May 2007 Location: Ohio Posts: 253 iTrader: 0 reviews	so ur saying that i shouldn't even bother with procomp?

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