L92 Head Porting

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Mar 15, 2011 | 01:30 PM

#21

Scoggin Dickey

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From: Lubbock, TX

Quote:

Originally Posted by WKMCD

Unimpressive numbers considering they were flowed on a 4.155 bore.

I don't know what that chart is, but it is not the correct flow data for our heads. It looks like the original GMPP CNC LS3 head flow chart got applied to the wrong head page on the website. When Hot Rod did the 3rd party head testing they checked flow along with HP and TQ vs other heads and our heads proved to perform with the best factory casting CNC heads in the test.

Their flow sheet from an off the shelf set of our heads is here:

http://www.hotrod.com/techarticles/e...4_casting.html

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Mar 15, 2011 | 04:06 PM

#22

WKMCD

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From: Northern VA

Quote:

Originally Posted by Scoggin Dickey

The numbers posted were unimpressive. Glad you straightened that out.

Mar 16, 2011 | 12:12 PM

#23

briancb1

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I've flowed gen 1 AFR heads attwo different shops and got completely different flow sheets.... Heads are the same but it shows that u can't compare even the SAME heads on different benches. Like I said earlier you probably can't go wrong with any of the big names, they are all very close. Just get American hardware and light valves then move forward IMO.

Mar 16, 2011 | 01:40 PM

#24

1lejohn

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From: Pasadena Texas

Quote:

Originally Posted by Scoggin Dickey

The SDPC heads did do well in that test.

Their heads flowed better on the intake then the ones I had hand ported.

Mine flow better on the exhaust

You can't go wrong with a set from them. They will make some serious POWER.

Mar 17, 2011 | 08:51 AM

#25

TwoValveKid

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From: Suffolk, VA

Thats a good article. Definitely will keep in mind when i order my El Toro in a few months.

But im wondering which WCCH head that is? stage 2 or 3? Just goes to show you it's not all about flow. The WCCH's seem to have more area under the curves, but the SD heads made more Avg Power and Torque.