Wiseco Chevy Small Block 4.125in Bore 1.250in CH -5.00 CC Piston Set

Forged from 2618 aluminum, this Wiseco piston set is built for the demands of serious racing and heavy-duty performance builds. The 4.125-inch bore size is a common specification for many Chevrolet small block engine configurations, and the -5.00cc dish volume is designed to achieve a specific compression ratio when paired with the right cylinder heads and crankshaft. These pistons are machined in the USA, ensuring a high level of precision in their construction.

Wiseco's Professional Series pistons come packed with features aimed at improving both performance and durability. You'll find precision ring grooves, anti-detonation grooves, and additional features designed to enhance ring seal, which is critical for maintaining compression and preventing blow-by under high stress. The ArmorGlide skirt coating is applied to reduce friction and resist seizure, contributing to quieter operation and longer piston life. The fully machined crown ensures consistent combustion chamber volume across all pistons in the set, and forced pin oiling helps keep the wrist pins properly lubricated.

This set includes eight pistons, rings, and wrist pins, ready for installation in your performance engine. They are designed to withstand severe duty applications, making them a solid choice for builders who are pushing their engines to the limit. Please note that these pistons are not CARB approved and cannot be shipped to California.