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Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2115765
07/22/16 08:16 PM
07/22/16 08:16 PM
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Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2115766
07/22/16 08:17 PM
07/22/16 08:17 PM
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Ste-Sophie, Quebec, Canada
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We have to pull the head first..right now the truck is behind the garage...

When we got the heads, casting looked pretty good...I was even impressed!

I bit discouraged so we parked it for the 2 weeks vacations...
Dan

Re: Small block Mopar ProMaxx head testing [Re: Porter67] #2115780
07/22/16 08:37 PM
07/22/16 08:37 PM
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pittsburghracer Offline OP
"Little"John
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Originally Posted By EV2Bird
By reading that John it almost sounds like you dont think the guy is being truthful....or knows what he has. With that id like to see pics of the current small block procomp heads with trashed guides, Front, back, ex side, and intake side please.

And I will say PLEASE as well.

What it really comes down to imo, folks migh just buy the china castings and do your work and source your own parts.... its not that hard.


If the folks who simply buy the castings and put there names on them would be more upfront on every aspect of the product from castings, springs to valves as well as part numbers like edelbrock does they would sell more heads because the dyi guys will still do there own thing.


If I had a superior import cast head that was really different from the others Id have every other look alike torn down, cut up on my website to show "my" casting was really different from the rest.

But at the end of the day, most are drinking from the same well.



A lot and I mean a lot of guys don't know what they have so yes I would like to see pictures from 4 angles. I will not buy a Speedmaster head (formerly PROCOMP) so I too am learning. Monte has spoken highly about ProMaxx heads before and being highly displeased with the quality of Edelbrock heads I started posting questions about the ProMaxx brand of heads. Probably 80-85% of racers entrust others to build their engines and don't know a Speedmaster from an Indy head if they held it in their hands. Like it says in the links I posted one place is in California and ProMaxx is in Alabama. Asking for pictures is a true way of getting quality information.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2115787
07/22/16 08:47 PM
07/22/16 08:47 PM
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So. Burlington, Vt.
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I would assume, from the pics you've posted, if the head with a dropped valve is a ProMaxx head, it's CNC'd right into the end of the head.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2115845
07/22/16 10:08 PM
07/22/16 10:08 PM
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State of Corruption
camdog440 Offline
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Maybe... all of these heads (Speedmaster, ProMaxx, Airwolf, etc.) could all be manufactured at the same factory or factories in China.
The head companies just place orders and have their name put on a box, or etched into the end of the head.


https://www.alibaba.com/product-detail/S...4857.0.0.wvmncJ

Same for the big block casting out there. I bought some PC vectors after speaking with Jeff at MCH. He advised that the castings were decent but to buy them bare and build them using good valves, springs, etc.

Re: Small block Mopar ProMaxx head testing [Re: camdog440] #2115875
07/22/16 11:16 PM
07/22/16 11:16 PM
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Portage,michigan
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Originally Posted By camdog440
Maybe... all of these heads (Speedmaster, ProMaxx, Airwolf, etc.) could all be manufactured at the same factory or factories in China.
The head companies just place orders and have their name put on a box, or etched into the end of the head.


https://www.alibaba.com/product-detail/S...4857.0.0.wvmncJ

Same for the big block casting out there. I bought some PC vectors after speaking with Jeff at MCH. He advised that the castings were decent but to buy them bare and build them using good valves, springs, etc.



That would be my thought as well.


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: Small block Mopar ProMaxx head testing [Re: B3422W5] #2115915
07/23/16 12:06 AM
07/23/16 12:06 AM
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bean town ....Ca
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When given an reasonable option I will always put our own people to work..


In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: Small block Mopar ProMaxx head testing [Re: WHITEDART] #2116010
07/23/16 09:15 AM
07/23/16 09:15 AM
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north of coder
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"Butt Crack Bob"
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with all that has been said so far, would/could it be possible to buy a set of heads that had problems real cheap, and rebuild them to some what acceptable standards using quality springs, retainers, guides, and seats, and have something usable on the low end of hp/torque for a reasonable/lower cost than spending big money up front ?[compared to rebuilding a set of iron heads]. this is just a rhetorical question. i'm guessing it would not be possible [unless a guy could do all the work necessary himself], but i'm asking because i will be needing heads in the future and pennies will be counted very closely. i understand also, a good,used pair of heads would be the way to go, but would still need disassembled and checked. just throwing this out there and hope not throwing the discussion way off track.
beer

Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2116056
07/23/16 11:39 AM
07/23/16 11:39 AM
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Charleston
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Well, Im right back to being confused


Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
Re: Small block Mopar ProMaxx head testing [Re: B3422W5] #2116076
07/23/16 12:09 PM
07/23/16 12:09 PM
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Apollo, PA.
B1MAXX Offline
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Originally Posted By B3422W5
Originally Posted By camdog440
Maybe... all of these heads (Speedmaster, ProMaxx, Airwolf, etc.) could all be manufactured at the same factory or factories in China.
The head companies just place orders and have their name put on a box, or etched into the end of the head.


https://www.alibaba.com/product-detail/S...4857.0.0.wvmncJ

Same for the big block casting out there. I bought some PC vectors after speaking with Jeff at MCH. He advised that the castings were decent but to buy them bare and build them using good valves, springs, etc.



That would be my thought as well.


All I would add to that is consider the guides also....

To all of this, all I would like to know is has anyone run a set of these successfully for an extended period of time....If 1 person has then we know it can be done. I know the set in this post is in very good hands.
Wish that is all I would have said in my first post work

Last edited by B1MAXX; 07/23/16 12:10 PM.
Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2116087
07/23/16 12:26 PM
07/23/16 12:26 PM
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central texas
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this guy got a set of the bigblock 9440 promaxx heads...
i sent a PM a while back asking if he had any problems, never heard back.

https://board.moparts.org/ubbthreads/ubbt...tml#Post1799674

Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2116223
07/23/16 05:28 PM
07/23/16 05:28 PM
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People can believe whatever they want to.......but I know for a FACT that ProMaxx heads are machined and assembled here in the states. Guess I should have taken a picture of the pallets of raw castings to prove it. So while it IS an offshore casting.....it is NOT a China machined and assembled head with ProMaxx etched on the end.

ProMaxx is owned by Jason Collins. Former IHRA Pro-Stock racer and also owns the track in Steele Alabama. He bought the company from Mart Witt. It started out as Alabama Cylinder head and they mostly did refurbishes on stock stuff. Marty worked for ACH and pushed the owner to get into performance stuff, which they did and renamed the company Patriot Performance. When owner retired, Marty bought company. He and Jason have always been close friends and when Marty wanted out, Jason bought it. Last time I was there, Marty was still running the shop, but not sure he still is. As I said before, they have state of the art equipment and guys who know how to run it.

To prove the quality of the castings, Marty ran his own heads on his twin turbo, big block Chevy, drag radial car. They were off the shelf water castings and he runs 50 lbs of boost. Car has been 4 teens on a radial

Re: Small block Mopar ProMaxx head testing [Re: WHITEDART] #2116225
07/23/16 05:32 PM
07/23/16 05:32 PM
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Originally Posted By WHITEDART
When given an reasonable option I will always put our own people to work..
Good luck with that. You will not find a foundry here in the states willing to do it for you at a reasonable price. Reasonable price, demands you order a crazy amount of castings. How many small block Mopar heads you going to sell? Guys complain to high heaven if the head is a nickel higher than someone elses, so US foundry is out of the question.

Edelbrock can do it, because they OWN their foundry

Re: Small block Mopar ProMaxx head testing [Re: Monte_Smith] #2116226
07/23/16 05:33 PM
07/23/16 05:33 PM
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pittsburghracer Offline OP
"Little"John
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Originally Posted By Monte_Smith
People can believe whatever they want to.......but I know for a FACT that ProMaxx heads are machined and assembled here in the states. Guess I should have taken a picture of the pallets of raw castings to prove it. So while it IS an offshore casting.....it is NOT a China machined and assembled head with ProMaxx etched on the end.

ProMaxx is owned by Jason Collins. Former IHRA Pro-Stock racer and also owns the track in Steele Alabama. He bought the company from Mart Witt. It started out as Alabama Cylinder head and they mostly did refurbishes on stock stuff. Marty worked for ACH and pushed the owner to get into performance stuff, which they did and renamed the company Patriot Performance. When owner retired, Marty bought company. He and Jason have always been close friends and when Marty wanted out, Jason bought it. Last time I was there, Marty was still running the shop, but not sure he still is. As I said before, they have state of the art equipment and guys who know how to run it.

To prove the quality of the castings, Marty ran his own heads on his twin turbo, big block Chevy, drag radial car. They were off the shelf water castings and he runs 50 lbs of boost. Car has been 4 teens on a radial





Thank-you Monte. After calling them yesterday and talking to Steven I felt pretty comfortable dealing with this company.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2116271
07/23/16 06:59 PM
07/23/16 06:59 PM
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Portage,michigan
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Basically, they are offshore heads with USA assembly, sounds like. You can( and I did) throw great parts at W5 heads, but they were cast like feces. Ended up as sprinklers.

That said, no matter who cooks the steak, if the meat isn't any good, it's gonna taste like poo. That seems to be the question here, and at least regards the small block Mopar heads.... It appears to remain unanswered until somebody flogs them for a good spell if they will hold up.

Back to your regularly scheduled programming............

Last edited by B3422W5; 07/23/16 07:00 PM.

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: Small block Mopar ProMaxx head testing [Re: B3422W5] #2116275
07/23/16 07:18 PM
07/23/16 07:18 PM
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pittsburghracer Offline OP
"Little"John
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That was such a good post you had to say it twice. Lol. It comes down to some guys are happy running 12's, some 11's, some 10's, some 9's and some are always searching. I'm a budget racer that loves testing and pushing so I will have a couple of sets soon running in the 9's and pushing for more


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2116279
07/23/16 07:27 PM
07/23/16 07:27 PM
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Romeo MI
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I have seen that a lot of China castings that are better than
American.. as much as I hate to say that... my MP M1 manifold
looks like crap based on casting quality
wave

Last edited by MR_P_BODY; 07/23/16 07:33 PM.
Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2116281
07/23/16 07:34 PM
07/23/16 07:34 PM
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Portage,michigan
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Originally Posted By pittsburghracer
That was such a good post you had to say it twice. Lol. It comes down to some guys are happy running 12's, some 11's, some 10's, some 9's and some are always searching. I'm a budget racer that loves testing and pushing so I will have a couple of sets soon running in the 9's and pushing for more


Lol... Nah.... Just back in from being out on the lake. 95 degrees today, and the water is 86. Little too much sun I think.
Nobody says they may not be good, at any power level, just long term dependability seems to be the concern. I think it's a valid concern at this point in time. Don't you?


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: Small block Mopar ProMaxx head testing [Re: B3422W5] #2116289
07/23/16 07:46 PM
07/23/16 07:46 PM
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pittsburghracer Offline OP
"Little"John
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Originally Posted By B3422W5
Originally Posted By pittsburghracer
That was such a good post you had to say it twice. Lol. It comes down to some guys are happy running 12's, some 11's, some 10's, some 9's and some are always searching. I'm a budget racer that loves testing and pushing so I will have a couple of sets soon running in the 9's and pushing for more


Lol... Nah.... Just back in from being out on the lake. 95 degrees today, and the water is 86. Little too much sun I think.
Nobody says they may not be good, at any power level, just long term dependability seems to be the concern. I think it's a valid concern at this point in time. Don't you?



No I don't. I honestly think at this time a ProMaxx head is BETTER than an Edelbrock head. I've never owned a Proform head (now Speedmaster) and never will. Way to may stories about falling out seats, broke valves, and broke springs for me to invest in them. I love the looks of these heads so far and can't wait to see how they perform out of the box with the flow numbers I provided. I hate what has happened to Edelbrock over the years and can only hope the new Victor head shows more Quality. I want a set soon. I usually buy my heads bare and upgrade to a bigger valve but before these are gone I want to try to track down what kind of valves are in them. I should have asked yesterday when I called but forgot.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Small block Mopar ProMaxx head testing [Re: pittsburghracer] #2116302
07/23/16 08:32 PM
07/23/16 08:32 PM
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Posts: 1,365
elmira ny
hp340nos Offline
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ive been watching this post.how do the valves look that come with the heads?and i wonder what would have to be done with these to work with a solid roller cam in the .640 lift range.im looking to replace the x-heads on my 340 stroker sometime and these look like the way to go,thanks

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