Best Bang for the Buck Head???

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slimjim said:
So I'm a little confused here. I have heard that the pro comp heads were coming out with a little better quality than before however, most people say they are just junk Chinese heads that last somewhere between 500 and 5000 miles. I'm about to purchase my heads so the pro comp heads seem like a great choice for only 1150 but, I want to make sure they'll last. Awhile and support 400 horses. Have the quality of these heads finally reached the approval of the members of this wonderful site? Or is it just false hope and I'm better off forking out the 1500 for the Edie's?
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Dr. J claims to have the Procomp heads wired........ 522hp with a 360 & 633Hp with a 408. Both on Pump Gas? Oh don't worry about the water pump.... Lol

http://www.j-performance.com/index.php?option=com_content&task=view&id=59

[ame="http://www.youtube.com/watch?v=OeX3LWkJKWg"]360 Mopar Dyno Test AIRWOLF 220 heads 522hp - YouTube[/ame]

[ame="http://www.youtube.com/watch?v=_AfyrlVkEdk"]408 Small Block Mopar with NEW AIRWOLF 220 heads 633hp - YouTube[/ame]
 
My machinist had a set of procomps come through his shop and he was really impressed with them.

To be honest, as far as i know nobody who's actually BOUGHT the procomp has had bad things to say about them.

I believe it's mostly people saying "I'm guessing they're junk because they're made in china"
 
^^^I've seen a number of them come through the shop. Problems range from dropped valve seat inserts, valve seats crumble to bits, valve guides gall up and seize, broken springs. Castings themselves cracked, pin hole water leaks, and lots of sub par machining.
They can be good heads if one puts in quality parts IE springs, locks, retainers, guides and seats. Plenty of shops sell these castings doing just that. Kinda like polishing a turd.
 
skrews said:
^^^I've seen a number of them come through the shop. Problems range from dropped valve seat inserts, valve seats crumble to bits, valve guides gall up and seize, broken springs. Castings themselves cracked, pin hole water leaks, and lots of sub par machining.
They can be good heads if one puts in quality parts IE springs, locks, retainers, guides and seats. Plenty of shops sell these castings doing just that. Kinda like polishing a turd.
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Wow..thought you were talking about Mopar W5 heads for a moment.....lol
 
I haven't used them personally. I've read about stuff and I know the big block were reported to have issues but even with that instance the reports were not first hand and the shop is not one I'd call strongly competent. I commented at one point I'd like to see more published builds before I buy them. I stand by that.
Love the dyno with no water pump or accessories on it. The heads were not responsible for that extra horsepower...lol
 
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