Piston

Bring new life to your classic's engine with this replacement piston. Whether you're replacing a worn component or tackling a full rebuild, this essential part helps turn combustion into the power that keeps your classic moving. This Piston fits 1950–1952 Buick Roadmaster; 1940–1942, 1946–1949 Buick Roadmaster Series 70; 1937–1942 Buick Century Series 60 and Limited Series 90; 1937–1940 Buick Roadmaster Series 80 and other models.

• Includes: 1 Piston
• Engine: 320 cid (5.2L) L8
• Piston Size: Available in standard size and in .020", .030", .040" and .060" oversizes
• Piston Specifications: Cast aluminum piston with a dome crown. Compression height is 2.719 in and piston pin outside diameter is 0.875 in.
• Fitment Notes: Cylinder bore diameter ranges from 3.458 in (87.833 mm) to 3.498 in (88.849 mm) depending on the size selected. Designed for 320 cid straight-eight engines.