383 magnum versus 383 big block

qkcuda said

That's what I was thinking. Where did the torque peak on the two engines?

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The 318/390 torque was at 3500. The 383 was at 3000. The torque and horsepower was almost identical at 2000 rpm where you start accelerating on the street wit the 318/390 having 3 lb/ft more.