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One look at the graph shows the substantial torque gains offered by the 383 stroker. In fact, the 383 offered more power everywhere, from as low as 3,000 rpm (our lowest load point on the dyno) all the way to 6,000 rpm. Where the 355 produced 438 lb-ft of torque, the 383 managed 497. Is it any wonder why the streets are so full of 383 small-blocks? Eagle-eyed readers will no doubt recognize the fact that the 383 produced both peak torque and power 200 rpm lower than the 355 and that the power fell off quicker past the power peak. What the 383 needs to rev like the 355 is wilder cam timing, but with the same cam, the larger motor will always produce peak power earlier in the rev range. The added bonus is improved idle quality over the 355.