Right on. I dont even know how that even came up.

Looking forward to the results. I have a feeling we are gonna have 2 good affordable options , in both flavors to pick from !

Thanks for sharing the info

Choosing heads can be like choosing what set of tees you play from on a golf course. Pick your own poison. I typically only advise the ones who ask. Never fails though when I recommend to play the whites when asked they always want to play the tips but then rarely hit the ball past the reds. So in a nutshell regardless the statistics people will pick or choose as they see fit.

Point being I think it's awesome the big players that have been around with great reputations finally have some competition and are no longer your only choices. That's what I like... It was beginning to be a monopoly. Cast/aluminum who cares. Build specific and preference the way I see it. I normally wouldn't feel that way about USA companies but over the last few years I've heard and seen some really poor quality come from those companies also.

Absolutely. I just saw on facebook, theres a guy from china, who has some castings that were copies of the afr heads. Suppsedly extremely cheap, and some guys have bought pallets of them, and said the castings were very clean.

While some may look at it as anti american, it could also go the other way. The big companies like dart and afr, have put a hige dent in the local machine shops income, by advertising bolt on ready quality. As you have said, the problem is, that just isnt the case.

With cheaper castings available, now the average consumer, can buy them, take them to their favorite head guy, and get a really nice performing and nice quality product, while still investing in our economy.

And before we get all high and mighty about the buy american thing, lets remember , the computer, cell phone, laptop, router, modem, and other things we utilize to be discussing this topic at the moment, are also made overseas ...

Same goes for most of the cranks and rods alot of us are running these days. Scat and eagle were supplying budget import cranks to the U.S. Then Callies was like F that, and came out with the compstar line. Which is a nice product. You think if scat and eagle never existed, callies would have randomly came out with an imported affordable crank option? Heck no. Competiton is what motivated them

Like Trump says, competition is good.

do you know where I can get some?

Look up Steven Sun on facebook. Hes from Hangzhou, China

Dangerous Website Blocked

You attempted to access:
http://stevenengine.com/proview.asp?id=53

This is a known dangerous website. It is recommended that you do NOT visit this site. The detailed report explains the security risks on this site.

For your protection, this website has been blocked. Visit Symantec to learn more about phishing and internet security.

Exit this site

^^^^That was a copy paste of a large screen warning from when I clicked on that link.^^^^

Phucking A.:poopoo:

Weird. No issues over here when visiting that site. I have Norton Antivirus.

nothing from avast,,already book marked the site,,thanks all

So what is the price point of these Chinesium castings? Looks intriguing.

The reason I dumped my reworked Pro Comp heads was guys telling me my seats will fall out, so that leads me to wonder why the off brand castings are as good if not better then dart, afr, edelbrock? I know my afr were heavier then pro comps, I was told due to material used... just something to look into.

Dude if I was AFR I'd be paying someone to hack their site showing every warning possible. Funny part is it's probably some little China men hacking from their little cubicle being paid off by AFR to fukk their own.

This was for a little humor and haven't looked up yet but the net is doing lots of weird chit lately. Gotta lot of space weather going on first quarter so be aware of blackouts.

MT you had a lot of good points here that are often over looked. I have to agree with you. I, like you and most likely all others on this site do our best to purchase American made products. Of course you'd assume your getting not only a quality made product but also keeping the American man working but in reality like you touched on what actually creates and keeps more jobs here. A brand name plant spitting out boxed up cnc heads or imported heads that need the attention from your everyday hard working guy supporting a family. And that's just one example but could compare to several. I'm going back to molnar cranks and rods. They are not only shot preened, weighed, spec'd every in every manner psssible but they will go from factory near GR and completely rechecked all over again at my machine shop. WE just can't take our eyes completely off the overseas pieces altogether which yes helps in a since cause people are gonna buy it regardless. Not all of course but many. An seriously I don't even know what to believe any more when it comes to what's being made where anymore.

The problem with Chinese manufacturing is the lack of consistency. You get a good batch and next time a crappy batch. The QC can vary quite a bit.
This is not a knock on your decision to use these castings john. I get why you went this direction and the castings certainly look like decent stuff.
The competition of offshore offerings has compelled domestic manufacturers to compete to come close to the offshore price point and, I really believe that domestic quality has suffered because of this.
In general, I think the quality of a lot of goods has declined and I think globalization has contributed to this.

But to copy your product, have impoverished people working in bad working conditions make it, and then resell it in your own marketplace for 1/2 or more less using marketing that they copied your product ?

I'd stab'm in the eyeballs and then rip their cock off.

I do agree but they've been getting much better with the inconsistencies as of last year or so. A lot depends on what company also I believe anyway. They are popping up everywhere over there. I always thought they were into the ninja bikes and little rice grinders bouncing off the rev limiters at street lights. Lol.

In regards to decision on heads is more of an experiment. If they weren't what they claimed to be I wouldn't bat an eye having ordering US head. Problem is though you face the same problems with them also. Ive had to send darts back for replacement, Read about problems with afrs. So original plan was to give profilers a shot but after Valako called today I'm glad I went the route i did so far any way. He's got a couple days on and off on an intake porting and taking measurements and said there is not one thing so far that has raised a flag. In fact the not only were the floors like competitions the uppers were plenty thick also. Plenty enough to take some material out after raising the floors.

If I get a messed up casting it will go back just like any other.

Again this was more of an experiment based on what I was told by a trust worthy person. Like mike tkach getrdun will be the ginipig on these. Nothing ventured nothing gained. Any flaw within reason they committed to return but said their quality control has been excellent since take over and new foundry.

My head guy said the same thing getrdunn. That what you are getting from the big companies, like dart, afr, etc, is MUCH better than they were 20 years ago. Still not perfect, but much better quality.

Im sure JimV has plenty of stories of aftermarket heads having issues right out of the box, irregardless of the name on the box

I put a set of small block ones on a customers engine (he supplied). the quality looked great which was a surprise given the cost. they were assembled heads and we didnt do anything to them as the motor already made more power than the tires would hold. my big question is how do these compare out of the box to brodix, dart, afr, etc. I know that with porting you can do a lot but I am interested in the starting point. anyone have the numbers of the others to put up to make an easy comparison?

They were posted earlier by someone. Pretty similar to that of any non cnc head plus or minus 320 cc runner. Not sure about sbc. if we find anything worthy of mentioning I will certainly post so others know.

I was probably one of the first cheap kunts to run PROCOMP... I ran them and ran and ran and ran them... ran the ballz of them!! however I was savvy enough to do "The Finishing" myself!! and set the spring pressures properly... again, anyone foolish enough to run ANYONE's cylinder head "outta the box" is just that... FOOLISH.. I don't give 2 chits who's name is on the box, I've had to do the same work on Dart or Brodix than I had to do on a Procomp.. so there ya have it!!! Thanks China what you did is made the big boys take a bow and say ok we have to get real with today's market pricing!!!

as for Promaxx... they are doing my new marine Supercharger series heads!! so for whatever that's worth to ya.. they are clean, as nice of anything I've paid double for outta Brodix!! and they flow pretty damn close to what they claim, and the minor variance I would attribute to a difference in flow testing equipment and/or environmental issues...

Tell us how you really feel big AL !

He doesn't have a Canadian performance cylinder head company.

Might be one soon!!!!!

Oh boy... this is news for me!!! :ernaehrung004:

who is the "HE" you're referring to SB?

ok.. Steven is a reputable foundry... but he's not really interested in small volume buys... minimum order to make a worthwhile deal is a pallet of 40-50 units at a time, then you're having to ship outta China, that could go really well or really badly? average is 35-45 days to see the product, not worth all the red tape for a few units...
this brings me to Promaxx, same quality a little more money, no issue. they do not build a marine head so bare casting is the only way to get them (IMO) it's really the only way I get heads anyways as I do the finish work and setup in house so I know what goes into them...

stay tuned for future updates and my new heads!!! :cartman:

Shhhhhhh...

Provided the mandatory lazy bastard dope smoking subsidy payment isn't too bad this year I will be running big Al's heads on the little blower motor...

LOL Thanks Rob...no matter which way you go I'm here to help in anyway I can

he doesn't sell to the public.. volume buy in only

This is why old schoolers like myself run dead soft copper head gaskets with the stainless wire oring in the block... seal with some Hylomar and off ya go!!!

So did we get some flow numbers for the final porting? I was wondering how they compared to the CNC version that Promaxx offers. I was wondering if the CNC version would actually be cheaper in the long run because less hand porting and cleanup would have to be done which would save in labor costs. Just wanted to know the flow on these bare heads. I am looking at possibly buying some sets in the future.

I have all the numbers you need plus my own in house RnD ... tell me what you're looking for and I can guide you to the best suitable product... they flow over and above right outta the box!! however I am using the new head verses the older 320... feel free to contact me with any questions you may have www.akracing.ca

Saw a set of these, very nice castings. Hate to say it but China has been refining and investing in their production abilities for years and currently has some of the most state of the art foundries in the world. It's no longer dirt floors and old school sand casting, it's all automated and pretty highly controlled.

The video tour of said foundry showed me some very very surprising things, including product manufacturing , how they're made and for whom!! So this just tells me that its been going on for many years, now thanks to the internet and open markets we can all see it and enjoy the fruits of it as the pricing becomes more user friendly

The AKR/Promaxx head will bump shoulders with the major players of the marine industry...

We have 4 different BBC versions of the 317s, from "as cast" to fully CNC custom ported supercharger heads!! and a E-coated version is in the wings TBA

[ATTACH=CONFIG]564296[/ATTACH][ATTACH=CONFIG]564297[/ATTACH]

AKRacing/Promaxx 317s... Intake .200 = 155cfm, .300 = 228, .400 = 289, .500 = 336, .600 = 368, .700 = 388 .800 = 392 exh .200 = 117, .300 = 158, .400 = 205, .500 = 228, .600 = 258 (w pipe 277) .700 = 260, (280) .800 = 261 (283)... so this is preliminary done after minor bowl work and marine valve job...