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Sierra Marine is the world's largest supplier of premium aftermarket marine engine and drive parts and accessories. many Sierra parts are made in the same plants as the original engine manufacturers' parts and are engineered to meet or exceed the factory original part. All Sierra parts are backed by a limited lifetime warranty.
For GM engines with bottom-mount straight-across bolt pattern. Standard clockwise rotation. '70-'78 GM 100-245 hp.
Chris Craft: 16.61-00042