Enginetech M42528-030 Moly Piston Ring Set GM Oversize - 8.1L 496 V8 030

The Enginetech M42528-030 is a premium moly-coated piston ring set engineered for GM and Chevrolet 8.1L / 496 cubic inch Big Block V8 engines. This set is sized at .030" (0.75mm) oversize, making it the correct choice for engines that have been bored or honed 30 thousandths over the standard 4.250" bore diameter.

Key Features:

• Premium moly-faced top ring for superior wear resistance and improved combustion sealing
• Ductile iron top ring construction for excellent strength and tension retention at high operating temperatures
• Ring thickness dimensions: 2.0mm top / 2.0mm second / 4.0mm oil — a three-ring configuration designed to OE specifications
• .030" (0.75mm) oversize for use with bored or reconditioned 8.1L 496 V8 cylinder bores
• Available in Standard, .020", .030", .040", and .060" oversize options
• Cross-references to Hastings 2M5085

Enginetech piston rings are produced in OE-quality manufacturing facilities using the highest grade gray iron, ductile iron, and high-strength steel. Face coatings include plasma moly for reduced friction and extended ring life. This set is a direct replacement for GM and Chevrolet 8.1L / 496 V8 applications from 2001 to 2007 and is also used in conjunction with Enginetech piston set P3077.