Pro Comp Heads? To good to be True?
05-04-2009, 06:05 AM
#1
2nd Gear Member
Thread Starter
Join Date: Apr 2009
Location: Massachusetts
Posts: 435
Pro Comp Heads? To good to be True?
so i have been looking around for heads, i am building a 351w and trying to build it on a budget like everyone else. i keep seeing Pro Comp heads for around $700 new with 2.02 intake valves i forget the exact size for the exhaust valves but good size, they come in 190cc and up to 210cc are these to good to be true? what do you guys think? thanks mike
05-04-2009, 08:01 AM
#3
5th Gear Member
Join Date: Nov 2008
Location: SC
Posts: 2,401
I know several people who have been running them with good results. I personally wouldn't put them on anything but a dedicated low buck bracket car. You truly get what you pay for. The one thing I know for sure is they don't flow anywhere close to the advertized CFM rating and they are very inconsistant from port to port and head to head.
05-04-2009, 09:43 PM
#5
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
the valvetrain components used in said head are less than ideal and not of the greatest quality when compared to other aftermarket heads such as a canfield and tfs head bought from the proper place.
05-04-2009, 10:35 PM
#6
Join Date: Feb 2009
Location: texas
Posts: 4
my buddy has the 210cc's and he doesn't seem to have any trouble with them...but i am also a firm beliver in you get what you pay for, just save up a little more money and do it right the first time
Last edited by bad92lx; 05-04-2009 at 10:38 PM.
05-04-2009, 10:48 PM
#7
If you do get them, get them bare if you are going to try to make any power with them.
The only thing I didn't like about them is the valve guides seem to stick way down in the port. They may be like that on all aftermarket heads but, a lot of flow could be gained from having them cut. If it is a street vehicle, you don't need to do this because they will not last long at all.
The only thing I didn't like about them is the valve guides seem to stick way down in the port. They may be like that on all aftermarket heads but, a lot of flow could be gained from having them cut. If it is a street vehicle, you don't need to do this because they will not last long at all.
05-05-2009, 12:41 PM
#8
2nd Gear Member
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Join Date: Apr 2009
Location: Massachusetts
Posts: 435
machine pro comps?
would it be worth getting the pro comps then have the machine shop go through them? also i have the set of heads that came with my 351w i assume they are not good but i am sure you guys will know one says 17A the other says 9A?
05-05-2009, 12:56 PM
#9
5th Gear Member
Join Date: Nov 2008
Location: SC
Posts: 2,401
If you have to pay a machine shop to go through them you may have spent the few extra dollars to buy a USA built high quality head. If everyone keeps buying that cheap China stuff more and more USA companies will go down. We lost Crane and a few other big companies because people fall for the price of cheap built heads and valvetrain parts. Right now we have an epidemic of failed rockers, lifters and other valve train components becuse the price looks great and the parts look familiar to more expensive parts. Buy High quality American Parts so we can continue to buy them in the years to come.