Wiseco Pistons 3937GFX High-Performance Piston Ring Set 3.937 Inch Bore

The Wiseco 3937GFX is a precision-engineered piston ring set designed for 100.00mm (3.937 inch) cylinder bore applications. These ring sets are manufactured specifically to Wiseco's specifications to provide ultimate performance and sealing with Wiseco's wide variety of pistons, as compression and sealing to oil control rings can make or break piston performance.

Key Features:

• 100.00mm (3.937 inch) bore size
• Superior seal with reduced friction and improved heat transfer
• Ring designs and materials tested and validated for quality and durability
• Compatible with Mopar Gen III Hemi engines including 5.7L and 6.1L applications
• Developed and tested for race-ready performance

Wiseco has been manufacturing pistons since 1941 and is renowned for producing high-quality performance components for off-road racing and riding. As the only aftermarket piston company to forge their own pistons, Wiseco operates from their 150,000 square-foot headquarters with state-of-the-art forging and CNC machining equipment. This piston ring set delivers the precision engineering and quality construction that have made Wiseco the industry standard for performance engine components.