stage 6 alum. heads

Posted By: MoparMichael

stage 6 alum. heads - 12/23/11 06:15 PM

anybody run these ? bigblock. how much porting do these heads need ? can you get 330 c.f.m. and who does the best porting for mopar heads ? thanks and merry x-mas to all

Posted By: Mr.Yuck

Re: stage 6 alum. heads - 12/23/11 06:20 PM

I have a set of ported Stage VI's on my 440-6. No idea on what they flow, or if they will flow 330. Only thing I don't like is the rocker assembly hangs over the top of the head making vavle covers a PITA. I had to get reverse lip covers and grind 1/2 of the upper lip off to clear the H/S rockers. I'm going to guess there are better choices out there for the money. Most "mopar" products are overpriced. Now if you can get a used set, it's a different story.

Posted By: JohnRR

Re: stage 6 alum. heads - 12/23/11 06:31 PM

Quote:

I have a set of ported Stage VI's on my 440-6. No idea on what they flow, or if they will flow 330. Only thing I don't like is the rocker assembly hangs over the top of the head making valve covers a PITA. I had to get reverse lip covers and grind 1/2 of the upper lip off to clear the H/S rockers. I'm going to guess there are better choices out there for the money. Most "mopar" products are overpriced. Now if you can get a used set, it's a different story.

That's the rocker, I used Erson rockers, look like the sharps with a set of cast alum. valvecovers.

They need a lot of work to get to 330 from how they are delivered.

Contact fast68plymouth he has a lot of experience with them.

Posted By: BradH

Re: stage 6 alum. heads - 12/23/11 06:34 PM

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anybody run these ?

I used to w/ good results. Only sold mine earlier this year after deciding maybe I could go faster w/ ported Victor heads (not proven yet...)

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how much porting do these heads need ?

Quite a bit, since out of the box they're really not "ready to run". That includes setting the guide clearance, doing a good valve job, etc.

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can you get 330 c.f.m.

That's more than I think 95% of the ported Stage VIs (not counting Chapman's CNC'd castings) have ever seen. Figure more like 310+ w/ standard 2.14" valves. There's an archived thread under the OLD Moparts tech articles (linked from front page, not from forum index) that covers some of this stuff from years ago.

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and who does the best porting

Well, I know who did mine and he's the same person I'd send a set to if I was doing them again: Porter Racing Heads, S. Burlington, VT