Aluminium heads from Procomp

[Morten Andre]

Was just browsing the internet to pass some time and came across Procomp´s website and saw they offered
cylinder heads for 440 engines.
Anybody know anything about them?
Just curious as I have never read about them online before.

Here are the specs:
Chrysler 440 Head Complete

72cc Combustion Chambers
280cc Intake Runner
78cc Exhaust Runner
2.25 Intake Valve / 1.88 Exhaust Valve

Procomp is in the business of making Chrysler power affordable with our new 440 Chrysler aluminum head.

Procomp heads are asssembled by skilled professionals and use the best components in the industry.  All Procomp heads come with the following:

Stainless steel 1 piece swirl polished undercut valves, high performance valve springs(flat tappet or roller, customer must specify , heads can be built to suit, some restrictions and price changes may apply) Chromeoly retainers, 10 degree valve locks, studs and guide plates.

Procomp heads come ready to install right out of the box.

Coming Soon: Procomp rockers for Chrysler 440 Head. Procomp CNCd Chrysler Head and Procomp valves.

Please note that heads require .400offset intake rockers.

All Heads Priced Individually.

[TXcharger70]

I would also like to know some more on these pro comp heads cause i am wanting to get some aluminum heads and have been looking a stealth heads and i also ran into these and just don't know anything about

[tan top]

 intresting find  

http://www.store.procompelectronics.com/index.php?target=categories&category_id=811

http://www.store.procompelectronics.com/index.php?target=products&product_id=37084

http://www.store.procompelectronics.com/index.php?target=products&product_id=37081

[frederick]

http://board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=5837538&an=0&page=2#Post5837538

http://www.moparstyle.com/forums/drag-racing-mopars/3770-bb-mopar-procomp-cylinder-heads.html

[mauve66]

1 thread has fairly good things to say and the other thread has fairly bad things to say, along with alot of political stuff
any new updates from someone over here???

[charger_fan_4ever]

heard nothing but bad things about the small block ford pro comps. Use chevy length vales, guides not in straight, cheapest valve train components they could put in them. Just saw they are $725 per head. I'd spend the extra and get an indy head or a set of 440 source stelths. Looks like they have some good sized ports more comparable to indy stuff than edelbrock.

[Ben Graham]

I bought a set this spring and have not been happy at all. First off the valve size is listed at 2.25 and 1.88 but the head is meant to have 2.20 and 1.81 like the edlebrock victors. With the bigger size the valves are so close together that you can't hardly tell with the naked eye that they are not, there is barley enough room between them to slide a piece of paper. Not enought to componsate for the size difference when they heat up in my opion. The reason for the the 2.25 instead of the 2.20 from what I was told is that the 2.25 and 1.88 are a common Chevy valve in that lenght so it is much cheaper to send em out with these instead of the proper size. But then of coarse have a look at where the vavles seat then. The engine shop I had look at them laughed at me and said that was as poor of valve job as you could do. So I had the valves taken out and turned down to the proper size and then did a valve job. So right there tack another $400 on to that great deal your getting. And it doesn't stop there. With the off set valves and the bigger intake runners the push rods for the intake valves have to run at a slight angle. Not a big deal it's only 3-4 degrees but the problem is the holes through the head are straight. The holes are so far out you have to bend your push rods like a bannana to tighten down the rockers, and yes my rockers are shimmed properly. So back off the engine and over to the machine shop again. Then you will find there is no easy way to measure thickness inside the intake runner so taking material out with an end mill is a nerve racking process and you won't know if you have taken enough untill you put em back on the engine. I have made three trips the machine shop and spent two whole days with a die grinder and the bastards still don't fit.

Why didn't I buy the Eddies I would have been racing a month ago instead I am chewing my nails to the bone and praying that I don't blow through in to the intake runners. 

[charger_fan_4ever]

I bought a set this spring and have not been happy at all. First off the valve size is listed at 2.25 and 1.88 but the head is meant to have 2.20 and 1.81 like the edlebrock victors. With the bigger size the valves are so close together that you can't hardly tell with the naked eye that they are not, there is barley enough room between them to slide a piece of paper. Not enought to componsate for the size difference when they heat up in my opion. The reason for the the 2.25 instead of the 2.20 from what I was told is that the 2.25 and 1.88 are a common Chevy valve in that lenght so it is much cheaper to send em out with these instead of the proper size. But then of coarse have a look at where the vavles seat then. The engine shop I had look at them laughed at me and said that was as poor of valve job as you could do. So I had the valves taken out and turned down to the proper size and then did a valve job. So right there tack another $400 on to that great deal your getting. And it doesn't stop there. With the off set valves and the bigger intake runners the push rods for the intake valves have to run at a slight angle. Not a big deal it's only 3-4 degrees but the problem is the holes through the head are straight. The holes are so far out you have to bend your push rods like a bannana to tighten down the rockers, and yes my rockers are shimmed properly. So back off the engine and over to the machine shop again. Then you will find there is no easy way to measure thickness inside the intake runner so taking material out with an end mill is a nerve racking process and you won't know if you have taken enough untill you put em back on the engine. I have made three trips the machine shop and spent two whole days with a die grinder and the bastards still don't fit.

Why didn't I buy the Eddies I would have been racing a month ago instead I am chewing my nails to the bone and praying that I don't blow through in to the intake runners. 

Guess when you think something is too good to be true it usually is. Sucks man

[tan top]

hello & welcome BG    ..aww man thats a bummer , sorry to hear you had problems , thats for the warning  on  them heads     what  car is the motor for your building 

[Cooter]

Sorry this had to happen to you, but it really does help those still pondering an aluminum racing head for the 440...If it weren't for you and your problems you've encountered being posted here, I prolly woulda bought a set and been in the same boat...Thanks for posting...

[tricky lugnuts]

"Sorry this had to happen to you, but it really does help those still pondering an aluminum racing head for the 440...If it weren't for you and your problems you've encountered being posted here, I prolly woulda bought a set and been in the same boat...Thanks for posting..."


Agreed . . . That sounds like a real crappy situation.

[frederick]

Hi Ben,

Then you will find there is no easy way to measure thickness inside the intake runner so taking material out with an end mill is a nerve racking process and you won't know if you have taken enough untill you put em back on the engine.

There are some tools for this that are easy to make yourself.

On the bottom of this page there are two tools:
http://www.popularhotrodding.com/enginemasters/articles/hardcore/0602em_cylinder_head_porting/index1.html

And here's a better picture.
http://books.google.nl/books?id=bM-86aKCS5EC&pg=PA28&lpg=PA28&dq=caliper+roger+helgesen&source=bl&ots=cot4JUXx_X&sig=Oqp3tu8-l_h0TPacQCgGGGDdkv0&hl=nl&ei=fDxHTJ70HMqPsAav6d23Aw&sa=X&oi=book_result&ct=result&resnum=2&ved=0CB8Q6AEwAQ#v=onepage&q&f=false


Thanks for sharing your problems, good luck!


Frederick

[Ben Graham]

Thanks for the tip about that tool. The engine is going into a 69 super bee.