Enginetech P30024040 Oversize Piston Set AMC GM Pontiac 2.5L 151 CID +0.040"

The Enginetech P30024040 is a +0.040" oversize replacement piston designed for the GM 2.5L 151 cubic inch Iron Duke four-cylinder engine, as used in AMC, General Motors, and Pontiac vehicles. This piston is engineered to restore proper compression and power output during engine rebuilds where cylinder bore wear requires oversize machining.

Enginetech is a trusted name in engine rebuild components, manufacturing pistons to OEM-equivalent tolerances for reliable, long-lasting performance. This oversize piston is ideal for professional engine builders and machine shops performing complete engine overhauls on vehicles equipped with the 2.5L Iron Duke powerplant.

Key Features:

• Oversize designation: +0.040" over standard bore
• Application: AMC, GM, and Pontiac 2.5L (151 CID) Iron Duke 4-cylinder engines
• Manufactured to OEM-equivalent tolerances for proper fit and function
• Engineered for use in professional engine rebuild applications
• Compatible with standard ring sets and connecting rod hardware for this engine family

When rebuilding a worn 2.5L Iron Duke engine, using the correct oversize piston ensures proper cylinder wall sealing, optimal compression ratios, and restored engine efficiency. Always verify cylinder bore measurements with a qualified machinist before ordering oversize components.