Inside A Ram Air V - Pontiac Tech
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The piston and rod assembly is a fairly common combination of a 6.800-inch, big-block Chevy-style Eagle rod and a Ross forged piston. Bore size is 4.13 inches, which is 0.020 inch smaller than a standard 455, making the total displacement a slightly smaller 451 ci. This saves cylinder-wall material for future rebuilds. View Related Article
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