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Discussion Starter · #1 ·
5.0 Mustang & Super Fords is doing a 347 engine build with CHP/Probe using a set of Pro Comp 215cc heads. The intake supposedly is a Parker Funnelweb 'supplied by Pro Comp'. The article has an actual picture of a Parker manifold. Not sure how that works, as from my understanding, Pro Comp and Parker have nothing to do with each other...and Pro Comp makes a knock off Parker manifold (pretty sure it's a knock off...doubt they're distributors of actual Parker manifolds...and at 130$ a pop no less) . They're also using a Pro Comp distributor as well.


Only brought this up because there's been a LOT of posts over the last while regardng durability and performance of these items...and while magazines aren't exactly known for their complete honesty in regards to output...this might give a fair idea of performance anyhow.


Cris
 

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Discussion Starter · #2 ·
Oh by the way, they're hoping to make over 500 N/A horsepower, and turn about 7500-7800rpm on a stock block, should be interesting. If we don't see a second article with power numbers...we'll know why lol.

Cris
 

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Discussion Starter · #4 ·
Just picked up the magazine yesterday. There's another article in it where they're building a budget 419w using a company called Pro Power (www.propowerperf.com). There's a sidebar, where these guys are coming out with 'their own cylinder heads'. Pro Power 'Prime One' heads. Guess what kind they are? Yep, Pro Comps. It's clear from the picture. They do their own clean up/port work and then call them by their own name. It's not that big a deal I guess, but I think it's funny that none of these companies give credit about where their heads come from. PBM/Hawks Racing heads are Pro Comps. Avenger Cylinder Heads are Pro Comps as well (they used to be Canfields). I talked to them, and they said flat out that with quality parts, these heads are as good or better than any out there. Not too bad for a head that, bare, you can pick up for 500$ a pair, add 250-300$ in decent parts (inc. real springs, none of that 'hydraulic spring' crap), do some clean up on...and bolt onto a 331-400+ for 475 to 550hp+.

Cris
 

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It's supposed to be an early model 289-302 block on the 347. The early blocks ARE a little stronger. Don't think they are brave enough to try it with a late roller 5.0L block.

The engine doesn't care what name is on the heads. It also doesn't care what you paid for them. Doesn't care where they are made. Only the purchaser cares. It will be interesting to see how these heads work. Would be even more interesting to see them go up against a Vic Jr.
 

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That really sucks because Parker busted his arse developing that thing.
 

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Discussion Starter · #7 ·
On 2006-05-18 12:34, 289nate wrote:
It's supposed to be an early model 289-302 block on the 347. The early blocks ARE a little stronger. Don't think they are brave enough to try it with a late roller 5.0L block.

The engine doesn't care what name is on the heads. It also doesn't care what you paid for them. Doesn't care where they are made. Only the purchaser cares. It will be interesting to see how these heads work. Would be even more interesting to see them go up against a Vic Jr.
Agreed, the only thing the engine cares about, is air and fuel. Personally, I think these heads are a good bang for the buck. So far however, I haven't tried them, so I couldn't say one way or the other.

I don't have a problem that they're Chinese, and to be honest I'm actually happy that many American companies are taking the initiative to go out and make some money selling them for themselves. The only irritating thing about it, is they're turning around, after making over 50% discounts in bulk purchases (I called Pro Comp to see about distribution myself), and selling them for the same as a set of American made heads. In my opinion that makes putting your own name on them by calling them 'Prime One' (for example) heads more than a bit shady. If you're going to sell something, and try to pass it off as something it either flat out is not, or only vaguely resembles, then that to me is incredibly wrong. However selling them as 'Pro Comp' heads 'prepped by Pro Power' (for example), or 'Prime One Heads' with a notation that they're based on Pro Comp castings makes all the difference in the world. I know for a fact that a LOT of these companies are cashing in on the 'Austrailianese' mixup, and that people think these are old Pro Toplines.

Anyhow, /endrant on that subject.

On 2006-05-18 14:05, ckelly wrote:
That really sucks because Parker busted his arse developing that thing.
If they're actually a knock off, I totally agree. In my opinion, it's one thing to hit a major company, that over prices their wares on a daily basis, in the pocketbook, and totally another to hit a hard working man who was actually trying to better our hobby. When I build my motor, I'm planning on a real Parker manifold (if I can make the damn thing fit =).

Cris
 

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Good moring Gents

I am trying to locate the fellow that wrote that nice follow-up on his "adventures" with these Pro comp heads. I did a search and couldn't find the topic. I would like to contact the fellow - Bill or Dennis?.

Can post the link to this thread? I copied portions of this into a word doc....but left out the screen names.

Thanks
Jim
 

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On 2006-05-22 13:49, TALONS wrote:
Good moring Gents

I am trying to locate the fellow that wrote that nice follow-up on his "adventures" with these Pro comp heads. I did a search and couldn't find the topic. I would like to contact the fellow - Bill or Dennis?.

Can post the link to this thread? I copied portions of this into a word doc....but left out the screen names.

Thanks
Jim
I haven't gotten to the dyno or track yet (awaiting 3:70 gears), but I have had no issues with the Pro Comp heads (short of the pushrod alignment and needing to massage the valve seat bowls.)

Anyways here's the link ou asked for:

http://www.fordmuscle.com/forums/all-ford-techboard/lowdown-on-new-procomp-superflow-heads_36320.html?word=pro+comp

_________________
Dennis

65' Stang

393 stroker, Toploader 4 spd, 9" 3:50 rear.

Victor Jr. Knockoff Heads, 282S cam, Stealth Intake, Bigs Stage 5 750DP, Accufab Headers, Scattershield, Caltracs.



<font size=-1>[ This Message was edited by: dennis111 on 5/23/06 6:08pm ]</font>
 

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I have a set of Pro Comp heads. 210cc
The bowls needed a bit of cleanup, other than that mine were very nice.
They flowed 270 cfm out of the box and 279 after bowl cleanup. I am pleased. I am sure they are making more HP than the DOOE's i ported and flowed 190 cfm.
I think they are hard to beat at about 1/2 cost of other heads out on the market now.
 

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Good morning

the fellow that I want to talk with put heli-coils in his head ( posted pics of this) and found out that the rocker arm studs were relocated (.06 ) to facilitate chevy rocker arms ( they are .06 shorter from trunion c/l to roller c/l ). I wish I could find that post here.

Jim
 

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Discussion Starter · #12 ·
I believe that's the correct post? Second page.

On 2005-02-17 02:18, bluestreek wrote:
I went over the heads with some measuring instruments after noticing the clearance issues with pushrods. I found another problem on one head where all the stud holes are actually drilled a full .060" closer to the valve guide than the other head. There were other issues that I'm not gonna get into details on. It's gonna take a lot of time and effort for me to get them where they're usable. I have an engineering degree and there's no way that the average person would be able to detect all the problems that I found until it just shows up by the breaking and wearing out of valvetrain parts.

So my final assessment on these "no-name" heads is to stay as far away from them as possible. The castings are nice but the machinery tolerances are just not there. They are a load of crap that was dumped on the US market without any quality control what so ever. You have been warned!! <IMG SRC="/phpBB/images/smiles/icon_tdown.gif"><IMG SRC="/phpBB/images/smiles/icon_frown.gif">
And:

On 2005-02-18 03:36, bluestreek wrote:
Tonight I clearanced the pushrod holes and installed helicoils in the stud bosses in a common location. Then I tried to find the best parts matchup for good valvetrain geometry with a .500 lift flat tappet cam. After monkeying around with different rockers and pushrods for an hour, I finally got a roller pattern that practically centered the valvetip and only left a .050" wear pattern through the full lift cycle. Here is what I used:

Standard chevy valves (2.05/1.60)
1.6 chevy pro magnum rockers
1.875" spring height
7.250" long pushrods

Pretty strange combination for a Ford head and flat tappet cam.
Hard to sort through all that I know lol.

Cris
 
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