pro comp heads
Thread Starter
Racer
Joined: Sep 2013
Posts: 254
Likes: 0
From: Charleston SC
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.
the would be going on a 79 l-82, with dual exhaust magnaflow
thanks
can anyone give me their thoughts on pro-comp heads.
the would be going on a 79 l-82, with dual exhaust magnaflow
thanks
Burning Brakes
Joined: May 2008
Posts: 948
Likes: 1
From: pensacola fl
I don't know anything about the Pro-Comp heads but Hot Rod magazine did a test on all heads selling for under 1,000.00. I think the article was in Sept 2011 or 2012. You can probably google the article.
Good Luck,
Bill
Good Luck,
Bill
Team Owner
Joined: Jan 2006
Posts: 39,390
Likes: 171
From: Into the Mystic And yet, despite the look on my face, you're still talking TN
St. Jude Donor '09 thru '25
http://www.carcraft.com/techarticles...head_shootout/
I'm leaning towards the Patriot's which apparently are the same as ProMaxx sold by Summit.
Last edited by Capt. Shark; Jan 19, 2014 at 05:10 PM.
Burning Brakes
Joined: May 2008
Posts: 948
Likes: 1
From: pensacola fl
Capt. Shark, thanks for the help. Seems like my memory goes down hill a little more each year. I actually have a set of patriot heads on my 76 and have no problem with them. I guess if I were going to the drag strip or really abusing my car, I might have gone with something different, but for around town and on an open highway, with my 4 speed, they work great for me. I also know 1977L48 has a set he is happy with.
Good Luck,
Bill
Good Luck,
Bill
Le Mans Master
Joined: Oct 2010
Posts: 6,938
Likes: 848
From: melbourne florida
2023 C3 of the Year Finalist - Modified
i have the 190 runner 64 cc chamber ones on my L-82. i would recommend buying them bare and have a competent person assemble them .( as i did ) the castings are fine but the components are cheap. i did a good bit of port and bowl work on mine and they work very well. a really nice bost in performance. if you have the L-82 cam the 1.6 rockers will help you utilize the extra flow.
Team Owner
Joined: Jan 2006
Posts: 39,390
Likes: 171
From: Into the Mystic And yet, despite the look on my face, you're still talking TN
St. Jude Donor '09 thru '25
If I were going to build a firebreather, I would seriously consider AFR heads. For what I'm looking to do, though, I just can't see double the money for the AFRs over the Patriots (ProMaxx). Specially as I'm just planning on keeping my L82 intake and cam.
If I'm wrong, I am certainly willing to hear why.
If I'm wrong, I am certainly willing to hear why.
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Le Mans Master
Joined: Oct 2010
Posts: 6,938
Likes: 848
From: melbourne florida
2023 C3 of the Year Finalist - Modified
there isn't a right or wrong, it is what you feel is best for you. i still recommend buying the heads bare and having a competent person assemble them.
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
If I were going to build a firebreather, I would seriously consider AFR heads. For what I'm looking to do, though, I just can't see double the money for the AFRs over the Patriots (ProMaxx). Specially as I'm just planning on keeping my L82 intake and cam.
If I'm wrong, I am certainly willing to hear why.
If I'm wrong, I am certainly willing to hear why.
Race Director
Joined: May 2005
Posts: 10,674
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From: Millington Illinois
St. Jude Donor '08-'09
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
Thread Starter
Racer
Joined: Sep 2013
Posts: 254
Likes: 0
From: Charleston SC
Angleplug,64cc chamber,screw-in studs&guide plates. 1.5 and 1.6 roller rockers, push rods
there are the specs for the, they came off of a 383 that was running 5.9 1/8ths.....they cost me 500 with everything
good deal?
Le Mans Master
Joined: Oct 2010
Posts: 6,938
Likes: 848
From: melbourne florida
2023 C3 of the Year Finalist - Modified
what heads? are the springs o.k for the application. has anyone been through them ? might be a very good deal. if you have the L-82 cam i would use the 1.6 rockers all around, but both are fine.
2026 Loser of the Year
Joined: Sep 2013
Posts: 36,601
Likes: 7,048
From: New Or-leens Loo-z-anna
$700 a pair?
Did I hear you correctly?!
That's a great price for heads that actually perform!
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
Pm the owner of the post above you or go to straub technologies web site. For a budget type build they sound idea with flow numbers at 250 cfm @ .5" on a 195cc runner for the money, the out flow the edelbrock rpms that I had on my l48. I've not seen them personally, but my dealings with Chris have been good and hes got a good rep on several forums. I'm an afr fan but for dome one not looking to spend $1500....
Last edited by bluedawg; Jan 21, 2014 at 11:33 AM.
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
What make of head? Flow numbers? What size of runner? Springs will need to match the intended cam.
Thread Starter
Racer
Joined: Sep 2013
Posts: 254
Likes: 0
From: Charleston SC
Combustion Chamber
64cc
Intake Runner Volume
190cc
Exhaust Runner Volume
80cc
Intake Port size
1.175W x 2.020H
Exhaust Port size
1.420W x 1.350H
Spark Plug Style
Angle or Straight
Intake Valve Diameter
2.020 in.
Exhaust Valve Diameter
1.600 in.
Rocker Stud Thread Size
7/16 - 20 in.
Accessory Bolt Holes
Yes
Valve Guide Material
Bronze
Valve Seats Machined
Yes
Valve Seat Style
Multi Angle
Valve Seat Material
Hardened Ductile Iron
Intake Bolt Pattern
Early Chevy or late (Vortec)
Valve Cover Mounting
Center and perimeter bolt
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
these are pro comp heads....
Combustion Chamber
64cc
Intake Runner Volume
190cc
Exhaust Runner Volume
80cc
Intake Port size
1.175W x 2.020H
Exhaust Port size
1.420W x 1.350H
Spark Plug Style
Angle or Straight
Intake Valve Diameter
2.020 in.
Exhaust Valve Diameter
1.600 in.
Rocker Stud Thread Size
7/16 - 20 in.
Accessory Bolt Holes
Yes
Valve Guide Material
Bronze
Valve Seats Machined
Yes
Valve Seat Style
Multi Angle
Valve Seat Material
Hardened Ductile Iron
Intake Bolt Pattern
Early Chevy or late (Vortec)
Valve Cover Mounting
Center and perimeter bolt
