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They're at about 350 @ .550 OOTB.

Good numbers. The trick is to get within 10cfm peak but annihilate it from .0 to .300 lift. Get the air moving quicker earlier.

Big peaks don't impress me on flow sheets or dynos.

There are very few modern hemi shortblocks which can even imagine using that much air effectively.

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Why do you think good flow from .000 to .300 lift is good?

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area under the curve.....give me a head that flows [Email]250@.300"[/Email] and 350cfm max at .600" over a head that flows [Email]200@.300"[/Email] and 400cfm max at .600"

the 6.4L block is kind of a love child of a late model 5.7 and a 6.1, as it has most of the features of the 6.1, plus the different cam tunnel and MDS features of the Eagle headed VVT 5.7

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Not many people understand that.

NONE of these hemi's can use what a ported 6.4 can flow peak. Why not have just enough flow to be effective?

Efficiency over peak all day, everyday.

I'll stop talking now.

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But the apache might offer both peak power and without giving up efficiency,

There is a guy on the LX board Alcharger
is he handle there

He was running a pwr 5.7 short block "392" stroker
he went from a a set of ported eagle heads to a set of ported apache heads and his 1/4 times were quicker by a few tenths quicker.

Know on a stock stroke motor that might be a whole other story

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I don't agree with the overall results. IMHO a Apache, ported or not is better suited to a 440 and above.

I've dealt with a racer in direct compeition to Alcharger. He ran less cylinder head (eagle) and was still faster over all and also less CI.

An effcient head is what we build for. Different styles work for different aplications.

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