Harland Sharp Original SB Chevy Rocker Arm - 1.6 Ratio - 7/16 Stud 57500BK Designed to fit the shape

Designed to fit the shape of the ABC style nosepieces

Bert/Brinn Starter can handle up to 16:1 compression

Traditional Chrome

1957-1957 Oldsmobile

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Harland Sharp Original SB Chevy Rocker Arm - 1.6 Ratio - 7/16 Stud 57500BK Designed to fit the shapeProduct Description: Rocker Arm Original 7 16 in Stud Mount 1. 60 Ratio Full Roller Aluminum Orange Anodized Small Block Chevy Sold Individually Since the 1950s, Harland Sharp is the leader in roller rocker arm technology. Sharp manufactures roller rockers and rocker components for a variety of applications. Their rockers are made from lightweight aluminum and anodized for increased durability.