CAST PISTON

The Sealed Power 517CP 30 is an engine piston set designed for performance and dependability, comparable to original equipment pistons. It features a DUROSHIELD® skirt-coated piston with a moly-graphite coating that reduces friction, improves cylinder sealing, and prevents damage from inadequate lubrication during start-up.

This piston set is oversized by 0.030 inches and constructed from cast aluminum. Key specifications include a bore diameter of 4.0000 inches, a compression height of 1.599 inches, and a recessed head illustration. The top and second compression ring thickness is 1.50 MM, and the oil ring thickness is 4.00 MM. The piston pin outside diameter is 0.9122 inches. Assembly lubricant is not included.