[quote=“evilsrt,post:10,topic:35701"”]
What is the reasoning why the LS1 has more power and torque below about 5500 RPM, but then the LS2 has the advantage above that?
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Perhaps it’s the breathing. LS2’s have a larger bore (4.000" vs. 3.900"), and therefore larger valves. They also have the old LS6 (243-code) heads, which are also freer-breathing. It probably makes up for the (-) 2 lbs of boost difference up top.
And for me, my car’s more a DD rather than a track car, so a flat torque curve that the Maggie gives is a good thing.