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The prediction for the engine was 668 hp and after a couple of trial/tuning pulls, the engine cranked out 668 hp. In fact, it was 668.9 at 6,000 rpm. Peak torque was 623 lb-ft at 4,500 rpm. Heck, it was making 500 lb-ft just off idle, so foregoing a longer stroke for larger bores hardly disqualifies this as a torque motor. It just happens to rev easily to 6,400 rpm.