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Blair ordered a complete 427W stroker kit from Coast High Performance. We like the 4340 steel crank, H-beam rods, and forged 4.030-inch SRS flat-top pistons. Probe increases stroke to 4.170 inches to achieve 427 ci. Rod length center to center, is 6.200 inches, yielding a rod ratio of 1.48:1. Marvin has massaged this crank to MCE specs, micro-polishing the journals for better oil control, chamfering the oil passages for improved flow, with a precision balance job from both MCE Engines and Automotive Balancing.