procomp????

[JustinLadner]

i seen some procomp bbc heads on ebay and the like for 500 to 600 dollars they come bare wit 320 cc ports and 115 cc chambers has anyone here ever used them or know anything about them

thanks
Justin

[cepx111]

I asked a similar question and the repsonse was that they were ok for a mild street motor without nitrous or boost, not ok for a race, deck thickness is on the thin side about 3/8.
Charles

[cboggs]

i seen some procomp bbc heads on ebay and the like for 500 to 600 dollars they come bare wit 320 cc ports and 115 cc chambers has anyone here ever used them or know anything about them

thanks
Justin

It's been posted here 1,000 times, .. they are JUNK, ..
just like anything else you get what you pay for.

Curtis

[bjuice]

I would take Curtis advise 100%..this is what he does everyday..

[JustinLadner]

sorry yall i didnt look to well one here to see the other posts! thanks for the input i got back

[cboggs]

sorry yall i didnt look to well one here to see the other posts! thanks for the input i got back

Justin,

Glad you posted, and I'm glad to post and save you the trouble of those
heads, .. .. we're here to help each other, ..

Curtis

[gdmii]

If Curtis tells me a chicken can pull a boxcar, I'm hookin that sucker up!

George

[Timmyboy86]

if you anything like me you probualy think you need aluminum to go fast like in small blocks no really if you want a way better head for almost the same cost buy the summit 305cc heads they are really dart heads and they'll support all the horsepower you need un-ported.

[JustinLadner]

hey thanks for the returns yall,,,,,,,,,no it not that i just think i need aluminum to go fast its jus if they were good thats cheaper than most stock redone gm heads,,,and i am on a very very tight budget

[JustinLadner]

hey yall i dont mean to keep beatin a dead horse by askin this but on a
street motor that would not see alot of strip time or ever have nitrous no boost,,,would they make decent power thanks justin ladner

[topsportsman1]

i seen some procomp bbc heads on ebay and the like for 500 to 600 dollars they come bare wit 320 cc ports and 115 cc chambers has anyone here ever used them or know anything about them

thanks
Justin

It's been posted here 1,000 times, .. they are JUNK, ..
just like anything else you get what you pay for.
Curtis

:P :P

[Robert1320]

I have had customers bring them in and we have used them.

We had a sbc set that went 9.0's and 160 in the 1/4
I have used the 320's as well.
I have another build friend and he get about 980hp ish out of them, NA.

I would want to look at them first.
320 are big for a small bbc...

Good Luck.

[signsbyesa]

All NEW Aluminum Cylinder Heads
Big Bock Chevy
Now available in 320cc or 360cc Intake Runners.
Multi purpose head for street, drag race or power
boat applications. 360cc Intake runner is not available at this time.
Specifications
3 Angle Valve Job Yes
Head Torque Settings 65-70ft lbs Short (7/16)
70-75ft lbs Long (7/16)
Rocker Stud Torque 50ft lbs
Combustion Chamber 115 cc
Spring Pocket 1.625"
Rocker 1.7
Installed Valve Height 2.00"
Valve Angle 15º/24º
Intake Valve 320cc 2.250" + .250
Intake Valve 360cc 2.300" + .250
Exhaust Valve 1.880" + .100
Intake Push Rod 8.50" Manley 25850
Exhaust Push Rod 9.50" Manley 25960
Intake Face Angle 90º
Intake Guide Material Manganese Bronze
Exhaust Guide Material Phosphor Bronze
Intake Port Dimensions 1.640" x 2.4"
Head Gasket Fel-Pro 1047
Intake Gasket Fel-Pro 1275
Head Studs Manley 13083
Manifold - Edelbrock 2902
Spark Plug Suggested Starting Range only C57C
INTAKE FLOW SPECIFICATIONS (4)
@ 28" SFH 5030120 320cc Intake EXHAUST FLOW SPECIFICATIONS
@ 28"
0.200" Lift -171.09 cfm 0.200" Lift -123.31 cfm
0.300" Lift -254.44 cfm 0.300" Lift -167.20 cfm
0.400" Lift -321.91 cfm 0.400" Lift -205.73 cfm
0.500" Lift -357.53 cfm 0.500" Lift -241.59 cfm
0.600" Lift -377.37 cfm 0.600" Lift -261.88 cfm
0.700" Lift -390.03 cfm 0.700" Lift -279.57 cfm

flow numbers on the JUNK HEADS they flow better than my
canfields, but they are junk cause their cheap, maybe if they
raise the price they can compete, i paid $300 more for
the canfield any cheaper and the canfields would be junk
if anyone gave me a set of these junk head i would throw
them in the trash, too cheap, needs to be more expensive
god for bid there might be something cheap and good out there,
just JUNK, give me the expensive heads any time.

[edvancedengines]

We have no way of knowing which quality of head or heads you will get if you buy these. If you are lucky (?) you will get a matched set of problems. Usually not. Usually the problems discovered with one head will not be the same problems discovered on the other. You can look forward to a possibility of the rocker arm stud holes and the studs not mounted in correct alignment so rocker arm geometry can be accomplished without expensive head repairs to fix the problem. The problem I just mentioned is far too common in the import heads. You may find valve seats that are soft or inferior. You may find that the deck thickness of one head is not the same as the other head and the valves between the two heads will not be at the same depth. The many different problems that keep showing up in some of the import heads give builders and never ending learning experience.

Or you could get a perfect pair.

Have you thought about how those flow numbers are gotten? A hint is the runner sizes are huge and are not shaped well at all. Sheeer mass size will give big flow numbers on a bench but will not perform as well as a well designed and smaller port.

They are not junk,because they are cheaper.
They are junk becuase they are junk and that is why they are cheaper is to try to sell a price instead of selling a cylinder head.

I like Canfield heads. I consider them to be among the best of the lower price range heads and will work pretty well for their cost with minor bowl work and minor tootsie roll finishing. Still you want to match the runner with the application when possible.

Ed

[Robert1320]

Ed,

No doubt there are better heads and I would rather build froma know brand. As we both know often times we assemble the part we are given....

Seldom do the guys with unlitmited budget show up at the door step and spend whatever it takes!

[cboggs]

Some people are just too stuborn to listen to 30 years of experience.
Junk is Junk, .. there's no hiding that behind some advertising
mumbo jumbo, .. plus I'll bet the flow numbers are BS too.

It's not about the price, . it's the quality of work, .. well there isn't any.
The seats have fallen out killing an entire engine, .. so the money saved should
be put in the bank to pay for the new block and pistons you'll need.
The castings are very thin and crank, .. on big roller cams they will
pull the stud right out of the top of the intake port, .. gotta look past
the advertising text, ..

Spend an extra $500 or so and buy a quality part that will last you for
years. Buying cheap junk is false economics, .. costs you more in the long run.
It's not an unlimited budget deal, .. that's a cop out, .

Canfields when properly ported will run VERY well.

We NEVER isntall parts on customer's jobs we don't have confedence in.
That's our job and why we have the reputation we do.

Curtis

[JustinLadner]

hey yall ,,,,,,,, thanks for the post i realize now what they was saying
about junk,,,, i thought it was they jus couldnt hold up to nitrous or boost or the like thanks

[cepx111]

Justin , you have created a monster...lol
In my opinion if I had a fairley stock motor without allot of money vested in and I wasn't planning on use power boosters and they were FREE, I wouldn't be afraid to bolt them on and see what happens , but then again if I had a built motor with allot money vested in, noway in friggin hell.
I think that it all goes back to the saying of you get what you pay for.

[edvancedengines]

Ed,

No doubt there are better heads and I would rather build froma know brand. As we both know often times we assemble the part we are given....

Seldom do the guys with unlitmited budget show up at the door step and spend whatever it takes!


Robert,
Have I done that all too much. I agree and yes' 99 9/10 percent of my customers just don't have a budget to go racing but they want to and I do my best to help them to that.

I would much prefer to see a customer bring me an older but good set of quality heads to use than brand new pieces of junk with no port design in mind when they were cast in the first place. Actually far too often I even help them find heads used that are in a price range where they can afford them, rather than me put up with and see them trying to use foreign made junk cylinder heads.

I can make stuff run very well even limited budget stuff which even the big engines I do are as compared to what is the usual. SO if these is any capability in the parts, I feel I can find it.

I do not like big port heads that have ports large only for the purpose of advertising huge airflow numbers. I do not like pieces of cylinder heads breaking becuase the metal is impure and is junk material instead of a good old USA made Alloy, or because the casting quality control sucked and it turned out to be too thin in places we thought it was strong.

I hate with a passion to tell someone that their brand new right price imported heads will need $500 to $1,000 worth of repair work before we can even get started good with them. Like I said, some come through OK.If you see enough of them, you will not want to see anymore after you start finding problems caused by cheap manufacturing using inferrior alloy metal.

I know guys that have good luck with them so all are not trashy. Question is do people really want to buy something like that taking a gamble that theirs will be the good ones.

My opinion is, If you can only afford the cheaper head and it has to be aluminum, buy quality American heads that are used. Most everything I build in BB Chevy starts out with used heads. With SB Chevys The most expensive set of heads new I have ever been able to buy is $1,400 heads but I still end up making them run somehow. Now I have used some better SB heads but the customers already owned them from either a new source or a used source. I have been priviledged to be able to use some really good Used BB Heads though.

For what you are wanting, mu suggestion is to keep your eyes open for some good heads from Brodix, Dart, Airflow, Canfield etc, of the smaller version styles. Also about the best price you will buy a Canfield for is from Competition Products.

Others may disagree with me on this.

Ed

[zipper06]

Stepping in on these heads,
I'm the person that posted in a prior post that the deck thinkness is only 3/8" thk.
I sell pro-comp products and have seen both b/ blk. and sm/blk heads, bare and assembled.
The flow rated posted earlier in the topic is for the full CNC ported b/blk heads. i have sold s/blk heads for street use only, but refused to sell a set to a person who has a small B&M blower on engine which was pushing 8 lbs. on a 355" with double hump heads. He did however go to another source and purchased a set of 210 runner heads, completely assembled for about $650.00. i don't know whats going to happen because he has now gone to a 383" with his new pro-comp heads (the engine is not installed yet)
The CNC ported heads mentioned earlier are ported by Direct Motion, which is right next door to ProComps old warehouse in Ca. then sent back to the warehouse where they are assembled by JR. :roll: who doesn't have a clue about racing performance or quality parts. I don't know where the valves come from, but they are 11/32" stems on the b/blks and 5/16" on the s/blks, the rocker studs are heilicoiled from the factory.
I recently sold an Eagle cast rotating assm. and a set of 210 procomp heads for a 383 street built mtr., but the .525 hyd. roller cam and all related parts were purchased from Crower, including springs keepers etc.
It was installed in a 1974 vette. I have to say that this combo runs really good for a street car.
Would i run these heads in a racing application? Not when i have $4,000.00 in a short blk with 14 to 1 comp. and a .700 lift cam with 750 to 900 lbs, spring pressure.
I can't comment on the seats falling out or the rocker location being out of place, because i've haven't seen it happen and i've never checked the geomitry of the rockers, since i've never used them. I do however agree if you want to go fast you better look for dependability.
I can buy these heads dirt cheap and still will not use them. I'm a Brodix person. and every set of heads i have (3) all have thk. decks that will hold head gaskets under load.
I was offered a set (FREE) for my 1471 blown alcohol 383 motor but i doubt if it would get off the engine stand before it popped a head gasket.
bottom line is you get what you pay for and i won't sell them to you if they are going on a competition motor.
I don't advertise on RJ or ebay, i only sell word of mouth and cannot afford to replace a good short blk because someone bought the wrong parts.

Just my .02

Zip.

[Robert1320]

Won't hold up to boost?

We had a set on a sbc, these were ported and we are still running 24 psi of boost on them. 3200lbs+ car running 9.0 and 158+.
The trans broke but it should be back at the track this year. Our friend has a tight budget.

[signsbyesa]

wanted to find out about procomp and they are using the old
protopline castings which went out of business, the castings are
coming from china like every thing else, even some of the best
tool companies are made in china, dewalt, milwakee, etc. I had
a set of protopline sbc heads and worked great for the price,
went racing and daily driver, the other comany that is putting
out the old protopline is RHS, my canfields were cast in china
as well, and if you check all the cam companies, they get their
castings from china as well, all because the cost of payroll for
it to be made here can't compete with the overseas castings,
Friedrich air condidtioner just closed here in tx and is moving to
mexico to compete with the companies from china. so castings
from china like the procomp heads might be junk, but if you
check your high dollar parts on your car, they more than likly
come from china, deal with it.

[zipper06]

Man this is getting good :)
I don't want to get into a pissing contest because i'm not that kind of a person, but there some things that need to be brought to light.

First and foremost thanks (Robert 1320) those are excellent results using proComp heads. One question is were/are these heads the old ProAction/ProTop line heads or are they the newer ProComp heads? i ask this question because because they are not the same heads.
Protop Line/proAction heads are cast in Australia/New Zealand, they went belly up a couple yrs ago i suppose because their marketing/promoting was not good enough to stay in business. They had excellent heads and would flow over 300CFM out of the box. RHS bought that foundry and now offer the heads as Pro Action heads and are completely machined by RHS their 235's flow over 315CFM out of the box, they also come with 11/32" valve stems. ProComps are 5/16" valve stems.

Here is the data on ProTop Line heads

FEATURES

Multi-angled intake valve seats
Radius exhaust valve seats
Improved valve guide design
Refined water jacket design
Manganese intake valve guides
Bronze exhaust valve guides
Hardened valve seats
Extra-thick deck faces ( NOTE )
Clean Cast Technology™

Go here for the full data.

http://www.racingheadservice.com/Information/Technical/Heads/SmallBlockChevy-Heads.asp

ProCmp heads are Chinese casting and machined in China, if you want CNC porting they are ported at Direct Motion in Ca.
Procomp does not have a head casting that will port to 225 runners at this time. I was intrested in these heads until i saw a couple sets of these heads and the 3/8" deck thickness.
Below see supporting emails directly from the head porter himself at Direct Motion.

Read from bottom to top.

Hey Darren,
>
> Forgot to add, don't worry about the valve job i'll
> take care of that, just do them like you did my
> friend
> Richard Blalocks BBC heads.
> Also do these new heads have the Stahl bolt pattern
> on the exhaust ports or the conventional chevy
> pattern. If you are doing these holes i would prefer
> the Stahl pattern.
>
> John Allen
>
> --- john letter <[email protected]> wrote:
>
> > Hi Darren,
> > I just recieved a copy of your email to Richard
> at
> > ProComp about the SBC heads, as per our emails
> early
> > last month, i'm intrested in these heads to go on
> a
> > 383" blown alcohol motor. I'm more intrested in
> > getting the exhaust flow up and i think the 20%
> > increase will help a lot for this motor. As for
> the
> > intakes if we can get the flow up around 300CFM
> with
> > a
> > port size to match a felpro 1206 gasket i think
> they
> > would work well, 5 or 6 weeks out is not a
> problem,
> > because i'm still working on the Anglia chassis
> >
> >
> > Copy of email from Richard
> >
> > Richard as of right now there is not a casting
> from
> > ProComp that will flow trying to go out to 225cc
> int
> > volume without breaking into water, with that
> being
> > said we have a 210cc port that is working out the
> > best
> > this will need a 2.08 intake valve we also have a
> > new
> > exhaust port that flows 20% better, however this
> > won't
> > be ready for them until we digitize this head and
> > run
> > the program on another head, this will take around
> > five weeks from now. Keep in touch with me and I
> > will
> > update you as this evolves
> >
> > Thank you Darren San Angelo
> >
> > Thanks in advance
> >
> > John Allen

Like i said not trying to get into a pissing contest but these are facts.

Zip.

[alumhead]

dude: talk about bad info, chinese canfields? John Fenton

[edvancedengines]

I didn't notice that part of the reply.

Canfield Cylinder Heads are Cast and machined in the USA.

For certain the Canfield is very top quality casting. The CFE BMF Heads that the Outlaw Racing world is going nuts to get now are begun from Canfield Castings. The Steve Schmidt Conventional Nitrous Head for BB Chevy is Begun as a Canfield Head and then is Done by BMF division of CFE and then completed to their specs by Steve Schmidt.

I have used several of the Canfield Heads and have been very happy with them all. I buy my Canfields. from Competition Products.

I do not know if the version that Jeg's sells under the Jeg's name is the same or not.

Ed

[signsbyesa]

dude talking about the material comes from china, where do you
think our old cars go to get melted Pittsburg steel? there is no more
pittsburg steel one of the biggest, i worked at a foundry and the
metal started coming in the late 80's and then sent pittsburg
and other steel companies out of business, so if you want u can say
"chinese metal", i still think we will end up in trouble, look at the
recall on toys. :twisted:

[cboggs]

I agree, .. our country is in VERY, VERY serious trouble and the
idiots that run it can't see it coming, ..

it's like a deer in the head lights, ..

Our business has gone, the little guy can't make it any more, ..
taxes are higher, . .. and the "guests" from other countries
are using up our tax dollar resources, ..

we got huge problems, ..

Curtis

[Racefab57]

cutris ,WHY the HELL CANT THEY figure this out? WE need a person like you in the white house ! not that idiot!!!!!!!!!!!!!!!!!!!!!!!! David.

[woodsman]

cutris ,WHY the HELL CANT THEY figure this out? WE need a person like you in the white house ! not that idiot!!!!!!!!!!!!!!!!!!!!!!!! David.

David you said ( not that idiot ) did you not mean to say not them idiots.

[cboggs]

cutris ,WHY the HELL CANT THEY figure this out? WE need a person like you in the white house ! not that idiot!!!!!!!!!!!!!!!!!!!!!!!! David.

Yea right, .. me in the white house, .. first thing I'd do is try to
fire congress, .. then where would I be?, .

I live just outside of DC, .. in another life I was a fairly popular
portrait photographer, .. shot CEO's & senators in that
"rolling stone" magazine style, ..

well I got to meet plenty of our national leaders and let me tell you, ..
stupid would be a compliment. These people can't see past their
own personal interest much less how their actions effect the nation
in the future.

Arrgg, .. this makes me so mad, ..

Curtis

[woodsman]

Curtis its all coming to a head and we are all going to get to see the out come first hand in the not to far future. My guess is that we have went past the point of no turning back. And I feel the very same as you do with the people in the white house. They all live in another demission in time then we do.

[demented]

It all comes back to the all mighty dollar. These guys in DC are getting there pockets lined to vote on bullshit, then turn the other way, and hope they don't get caught. And to make matters worse they don't care about the average joe. Probably because we have no more money to give them. :evil:

[longrodsbc]

I didn't notice that part of the reply.

Canfield Cylinder Heads are Cast and machined in the USA.

For certain the Canfield is very top quality casting. The CFE BMF Heads that the Outlaw Racing world is going nuts to get now are begun from Canfield Castings. The Steve Schmidt Conventional Nitrous Head for BB Chevy is Begun as a Canfield Head and then is Done by BMF division of CFE and then completed to their specs by Steve Schmidt.

I have used several of the Canfield Heads and have been very happy with them all. I buy my Canfields. from Competition Products.

I do not know if the version that Jeg's sells under the Jeg's name is the same or not.

Ed








CANFIELD OHIO