[BYprodriver]

Originally Posted by Topless

Yep, the m96 3.6L x51 is probably 330rwhp with a wide flat torque curve. Roughly 100 ftlb more tq than a stock Box S. A lot of motor. This is what Jake said a while ago:
M96 3.6L X51 option - what is it? - Rennlist Discussion Forums

A few other smaller details. Roughly good for 25 RWHP on my dynojet.
I take these to 3.8 liters, do more head work, alter cam timing and throw a few tricks to them and 350 RWHP is common.
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Jake Raby
Flat 6 Innovations

How did you come up with those guesses?