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Discussion Starter #1
i noticed these heads on the net the other day and they seemed to put out some good numbers and were nicely priced. just wondering if anyone had any experience with them. thanks
 

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Discussion Starter #2
what about any aluminum heads for a 460? anyone have any opinions?
 

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I've used the Pro-Comp 460 heads on a 545" solid roller motor I built to run at Bonneville. They need at least 10 hours cleanup time in the ports. They are full of machining overhangs and casting flash. After the prep work, they aren't to bad, but the old addage you get what you pay for applies. If you put them on out of the box, you're wasting your time. If you have to pay a professional to do the work to make hem right, you may as well buy Edelbrocks.

Also, be careful, they use the same funky valve in the 460 heads as their own 351C heads, so the only source for cost effective valves are Pro-Comp or SI. I use bare heads so that I can control the springs used, and the finished product.

A final thought, and this one may affect your decision, they use the standard 460 port location, not the Cobra Jet port. If you want to run a dominator like we did, there are no manifolds that bolt up to the head without massive modification. I used a Performer RPM Air Gap, and welded on a Dominator carburator flange. Then I weded the interior of the manifold under the carburetor and ported/re-machined it to keep it a dual plane. We run a 1050 on it.

It runs well, but rain at Bonneville washed us out in October and rain and wind at El Mirage kept us from running in November, so we won't get to run until May.
 

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caasting are made in AUSTRALIA i think,bare..and assembled here...i heard good and bad,,i hear the casting allways need smoothin out..ME personally i would rather have som1 in N>AMerica make the heads i have or want so i can get parts cheaper,and as allways ya get what ya pay for..i had windsor jrs,srs,and would take the windsor jrs,srs, over the pro comps..IMO///what do i know,im a pawn in a dark game of life lol..
 

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Like was said above, you get what you pay for. I believe they are imported TO Australia FROM China.

Believe me, if they were made in Australia they would be on the same level as the CHI heads and the Parker stuff.

Personally, I'd save my money and spend it on some TFS Streets or FRPP SCJ's. Jon Kaase also has a new head coming out real soon. It basically his rendition of the worked FRPP SCJ's he used on his Engine Master's Engine a few years ago.

His testing has confirmed 700hp and around 580 torque on a 10.5:1 466 FRPP shortblock, and 800hp on a 12:1 FRPP 514 (actually 521) shortblock. Both tests were with a Victor intake, nice healthy solid roller and a King Demon 1050.
 

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That sucks. Those are the very heads I wanted to put on a 557 with a dominator.
 

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Like 88Saleen said. If you have the FREE access to do the required work then they aren't that bad. I don't think anything is helicoiled either. It's just after you pay someone to clean themup, check everything, etc.... you probably could've bought a set of TFS or SCJ's.

Seeing as you can by those from ebay for $1400, why not spend another $400 and get a set of SCJ's, or TFS...

JMO, I'd use a worked set of DOVE's before I used a set of Pro Comps.
 

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OK.... so I wasn't going to post.

But I have to. I'm a 20 year old engineering student, a car fanatic and thoroughly enjoy combining the two. With that said I'd like to ask those of you considering these heads for your motors to really step back and look at these products. The reason these heads are so reasonably priced is because of the engineering process that went into them. None. Frankly ideas for great heads don't just pop out of no where. Ideas like these cost companies money in both research and development. There are employees necessary for a company to do both research and testing, employees who are real people with real families which they are supporting.

A company such as Procomp, a large threat to today's parts company, invests no such money in research and development. Through eliminating research and development they eliminate the skilled workers and unskilled workers required. This allows them to lower their price, as anyone can dissect an already built piece of metal and make something similar. That is why there are patents, to protect the integrity and value of a persons original idea. Unfortunately there are ways around this, and Procomp is excelling at this.

Now what is even worse, these companies stop any forward motion of technology. If one thousand years ago all we did was copy the wheel of our fathers, and recreated it exactly the same without understanding how it worked, we would still be in a primitive carriage and the automobile would be nonexistent. Yes, this is a severely exaggerated example, but you get the idea. Imagine running 70's technology for the next 100 years. No EFI, no efficient motors, no valve timing management, etc.

I can't tell you what to do with your wallet, just hopefully get you to think twice before supporting a company that cuts out the hard work that those of us study for years to be able to conduct. One day I hope to come up with an original idea, an idea that can revolutionize the automobile industry. It will be hard to do that if companies like Procomp succeed, I won't even have a company to work for.
 

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Sorry but if I can use them, procomps will be on my motor. You want to really suceed, figure out a way to make new stuff for what they sell theirs for by being exceptionally smart. If you can't, they are what you'll have to compete with. Unfortunately for you, I guess, this is the way the world works. Companies like procomp won't ever stop progress because there wil always be people with deep pockets that will not buy things like these heads because of the price alone.
 

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If you do some research you'll see that the Pro Comp head is basically a cast aluminum, bonestock DOVE, or D3VE head. I'm not even sure if it has the small or big chamber. It ranks below all of the other aluminum heads out there. Personally I don't think it's a good bang for the buck deal.

What I'm saying is the runners aren't anything special, just stock copies, etc.... That's why I said I'd prefer a set of DOVE's over them.

You can compare these heads to the SBF Chinese knockoffs that stirred s much controversy here on the corral a few years back.
 

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Being I don't have either one now, I'd pay that price for the procomps given the fact they are aluminum as long as they aren't a total POS. The problem I have with them is if I can't buy a dominator intake to fit them, they are worthless for the 557 I'd like to build.
 

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Any manifold will fit. You'll just have the same port mismatch problems that you'd have with other stock iron heads.
 

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Sorry but if I can use them, procomps will be on my motor. You want to really suceed, figure out a way to make new stuff for what they sell theirs for by being exceptionally smart. If you can't, they are what you'll have to compete with. Unfortunately for you, I guess, this is the way the world works. Companies like procomp won't ever stop progress because there wil always be people with deep pockets that will not buy things like these heads because of the price alone.
Perhaps you missed my post, or just skimmed through it quickly. It is impossible to continue to employ those conducting the research and development, making improvements and putting out a quality product all while keeping the cost down below what these thieves sell them for.

Obviously you won't understand, and that is your right. Just so you know though intellectual properties are being stolen and there are laws to protect these ideas. Unfortunately as I said already, there are ways around this. Specialty companies are working with their legislatures, and numerous articles are being printed to make the general public aware.

I certainly don't have deep pockets, my build uses a set of iron heads.

So do you like job outsourcing as well?
 

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I love Job outsourcing! Its great knowing some company on Our soil is getting rich while Our job market goes down the ****ter! Its also great to know Our the companies here ( that do or dont participate in outsourcing) are also getting the shaft in the end. Little pieces of America are being sold to china (who has very bad intentions for us) everyday. Illegals and unskilled immigrants are coming here in unprecented waves of over 2 million a year. The future is bright! /tangent
 

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I firmly believe that it is our duty to consider the effects our actions have on others and the world.

My conscience is clean in this matter. Is yours?
 

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Perhaps you missed my post, or just skimmed through it quickly. It is impossible to continue to employ those conducting the research and development, making improvements and putting out a quality product all while keeping the cost down below what these thieves sell them for.
Nobody said anything about keeping the cost below what others sell something for. Just try to keep it where it's not double the cost or more. Then and only then can you offer the better buy for the money with a superior product that's worth paying a little more for.

Obviously you won't understand, and that is your right. Just so you know though intellectual properties are being stolen and there are laws to protect these ideas. Unfortunately as I said already, there are ways around this. Specialty companies are working with their legislatures, and numerous articles are being printed to make the general public aware.
Obviously you are the one that doesn't understand and being 20 years old I can see why. What they are doing has been going on since the beginning of time and isn't going to stop ever. Just like people downloading music off the internet isn't going to stop.

I certainly don't have deep pockets, my build uses a set of iron heads.
I would imagine not at 20 years old but I wasn't referring to someone like you having deep pockets.

So do you like job outsourcing as well?
I prefer to spend my money at home and support job for the people in this country but if it means I'll have to spend twice as much or more, I just won't do that.
 

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I firmly believe that it is our duty to consider the effects our actions have on others and the world.

My conscience is clean in this matter. Is yours?
I don't have a conscience.
 

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Just a little more input here. These are large chamber heads, but you can mill the hell out of them and het them down to pretty much any reasonable chamber volume you might want.

The intake port is the same port dimension as a D0VE-C, but the exhaust has a nice raised floor at the exit. The bowl areas on both sides are hugely improved over the factory castings. The overall quality of the casting is actually pretty good. And the machining work is fine. Both are on par with TFS.

Don't get me wrong, I have no problem with these heads or any oher for the 385 motors. Our 545 just came off the dyno at 688rwhp at 6650 and 621rwtq. at 5000. I'll gladly sell you a set just like the ones I'm running, ready to bolt on. I have a spare set for the 545 that I just haven't finished.
 

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The intake port is the same port dimension as a D0VE-C, but the exhaust has a nice raised floor at the exit.
A knowledgeable friend of mine looked at a set of these and says the intake port is like a standard 460 port at the mouth but opens up after the mouth the CJ size so they can be opened up at the mouth to match a CJ intake.
 

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That would be a no-no. The head would have terrible velocity issues if it opened up mid port and got larger. The port is D0VE-C size 2/3 of the wy through the port, up to the transition into the bowl. The bowl and short radius are vastly different from any stock casting including the CJ and SCJ port.

Have fun raising the roof on these to match a CJ port size. You'll be into them for about 10hours. The bad part is, you likely won't need the port that big. You'll want to weld up the floor to get the port back into proportion. It's more logical to use a bigger head before doing that much work.
 
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