I ran a stock 2 bolt main block (302), and stock crank for 3 racing seasons. Had them cryogenecally frozen, and they held up well. 600 HP is right on the edge though. Lost the block in a lean out with N2O but the crank is still is great shape. The car launched at 4600 RPM and shifted at 74/7600, crossed the line at 8K. Have now gone to a forged steel piece and the R302 block stroked out to 347.
Ron
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