Ford Windsor Forums

just wondering if any of you have used procomp heads, dont want what you have heard about them. want have you actually used them.

i bought a set of the 210's just to compare. after i see response ill give our test results compared to gt 40, world product windsor sr. and highly ported e7's engine build is  a .040 351 with forged flat tops. comp cam 234 intake 244 exhaust  545 lift i/e. victor jr intake. 750 holley. jba headers.  built c-4 3200 stall. 488 gears in a fox body mustang.

Havent heard too much experience first hand with these so very eager to hear/see your experiences.

Dyno graphs would be awesome if possible!

Any updates?

sorry for delay but had some health issues to take care of.

 also sold the gt -40's before ran them. but here are the track results from the e7's , the windsor sr's and the pro comp.

e 7....1.967..  60ft... 8.30 et (1/8th) ...80 mph..... this is the best time.

windsor sr....1.67.. 60ft...7.70 et (1/8)...87 mph.... unported out of box... best time

pro comp..1.59..60 ft....7.26 et (1/8) 92 mph...unported out of box... best time but only made 3 passes and valve spring broke. was spring that came with heads..so would not recomend the factory springs. the windsors i think would do quite a bit better if rubbed on some. kinda scared of the springs and valves in the pro comp heads but they did perform better than expected. gonna get a friend to loan a set of afr 185's and see how they do. we ran  each set of heads on different weekends. but the weather and track seemed pretty much the same. anyways not a scientific test but a real world test at least on our car. one other thing, the pro comps were aluminum and the windsors were iron so the pros were much lighter. that contributed to the faster times to im sure. hope this helped answer some questions

Thats really quite impressive - 1 second over 1/8 isnt bad at all for only one part changed - pity about the valve springs.

What cam were you running?

its a comp roller cam. 234 intake, 244 exhaust., 545 lift.

1.6 roller rockers.

after surveying the damage from the broke spring, it had bent a valve, and ruined a guide. looks like perhaps very lite touch of the valve on piston.

and wasnt a a sec gain over the windsor srs. really didnt consider the e -7s nothing more than a base starting point.

gonna try a set of afr's and some brodix track 1 's  soon.

but i do agree i was  very surprised at the pro comps. more so after all the negative talk on them.if ya gonna use em for a race head need to improve the valve train im sure. but would be a very good street head.imho.

again im no expert, just slapped em on and ran em at track, results speak for themselves.

hey glad you put up this post.  My cousin is running a 302 in a 1982 mazda.  he was running 11.69 in the quarter.  he saved his money and added some mods one was the procomp heads.  went to the track and ran a consitent 12.10.  he was pretty sick at the loss in time and was going to change out the heads, but after his uncle (the most experienced one of our group) looked at the truck the next day, and looking over everything he found out that the rear brakes were dragging bad.  he took them apart and cleaned them where they now turn free.  So he's now going back to the track to see what happens, I hope it was the stuck brakes.  will let you know the results.  I'll let him know about the potentially weak springs.  post you experience with the afr 185's I am looking at either those or the victor jr.'s for my 351w.

Awesome that we have 2 of you guys with procomps on here. They are rare as hens teeth IME at the moment so real world first hand experience is hard to come by.

well we are fresh back from the track and its not good news.  the Pro Comp heads are impressive and comparable to other aftermarket heads, ONLY if they last to finnish the night.  after a total of five passess, on the right head an intintake and exhaust valve BENT didn't cause any block damage (we took it off and inspected it at the track) it also bent a hardend push rod.  I think the heads are best bought bare and then add your own choice of ss valves and a good set of springs.  but from experience be cautious with these heads.

which pro comp heads do you have?  also what were your before and after e.t's

what is your engine build. just wanted to know. did the valves hit piston why they bent ?

anyways sorry to hear about the bad luck.. i do agree...buy em bare and have good springs and valves put  in them.

 

Did you have the pistons notched to clear the valves? Running 2.02's without notching the valves is a recipe for bent stuff on stock geometry valve train.

302w, 40 over mild cam, 750 holly, c-4 tranny.  well after taking it apart at the shop, and looking it over better it appears that no piston damage occurred and also these pistons sit real low in the deck, a valve would have to drop to make contact.  Anyway it appears I was a little rushed to judgement on the heads.   after looking over everything it appears that we have the blame for this near catastrophe.  learning from our mistake.  we did not go with longer pushrods and the rockers we purchased for these heads, after looking at them closely, appear to be for a chevy and not a ford as written on the package!  these rockers did not set on the valve itself but were just to the front of the valve and on the spring!(to short)  so when pushing, instead of a downward motion, it was pushing the valve in a sideways position.  going to replace the damaged parts and try it again with the proper rocker arms and push rods.

Might want to have a quick look at one or two valve guides to check you didnt wear one side badly from the side load. Could cause oil leakdown and blow smoke.

didnt think of that.  thanks for the advise.

I'm fixing to build a windsor for a 73 mustang grande. The 351c died! I planned on using the stock crank and rods, bore 30 over, dish 9.8.1 kb pistons, bare procomp heads 60cc built by my local race shop, headers, roller rockers, lunati hy flat tappet voodoo cam, lunati hy lifters, lunati springs, rpm air gap intake, and a 670 street avenger carb. the car will be a weekend cruiser. i just want it to hit a hard lick and be able to smoke a door or two if i want.

 anybody got some advice, ideas, any input. this is my first build well im not building it my local race shop is but still need some help.