Sealed Power Cast Piston, 3.7360-inch Bore

The Sealed Power W454NP engine piston is a precision-engineered, standard-size component designed to meet OEM specifications for a range of GM 5.0L V8 applications. Constructed from durable cast materials, this piston features a recessed head design measuring 0.110 inches deep and 3.115 inches in diameter, supporting an 8.5:1 compression ratio. With a 3.7360-inch (94.9 mm) bore and a 0.06-inch pin offset, this unit is built to reduce piston slap and maintain engine smoothness. Designed for effective sealing and compression retention, the piston includes a three-ring configuration consisting of two 5/64-inch wide rings and one 3/16-inch wide ring. A minimum clearance of 0.001 inch at 2.200 inches from the top of the head is required to ensure proper thermal expansion during operation. This part is suitable for engine rebuilds and repairs involving various Chevrolet, Buick, Oldsmobile, and Pontiac models, including classic muscle cars and C-series trucks. Installation should be performed by verifying all bore dimensions and ring orientations before assembly. It is critical to confirm the specific piston-to-cylinder wall clearance during the build process and adhere to manufacturer torque specifications for connecting rod bolts to ensure long-term durability.