Wiseco Chevy Big Block 4.605in Bore 1.270in CH 48.70 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for serious performance in Chevy Big Block engines. The 4.605-inch bore size and 1.270-inch compression height are specific dimensions that matter when you're rebuilding a high-performance engine where every component needs to work together precisely. This set is designed for builders who are pushing their engines hard, whether that's on the track or in a severe duty application.

Wiseco machines these pistons in the USA, and they come packed with features aimed at durability and performance. You'll find precision ring grooves, anti-detonation grooves, and other features to improve ring seal, which is critical for maintaining compression and power under stress. They also include an ArmorGlide skirt coating. This coating helps reduce friction, resist seizure, and even makes operation quieter, all while handling the heavy loads of racing.

This set includes eight pistons, and the fully machined crown ensures a clean, consistent surface. The forced pin oiling feature helps keep the wrist pins properly lubricated, extending their life. If you're building a powerful Chevy Big Block and need pistons that can handle severe duty, this Wiseco Professional Series set is a solid choice. Keep in mind these are not CARB approved and cannot be shipped to California.