Wiseco RED Series Chevy Small Block 400 4.165in Bore 1.250in CH -15.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco RED Series pistons are built for the demands of performance Chevy Small Block 400 engines. The RED (Race Engineered Design) series is all about giving you the strength and durability needed for racing and serious performance builds, while also incorporating precision features that help you get the most out of your engine. Whether you're hitting the drag strip or pounding laps on a circle track, these pistons are designed to handle the stress.

Wiseco machines these pistons in the USA, and they've included some thoughtful details. The horizontal slot oiling in the pin bores is a smart touch; it ensures the wrist pin and small-end of the connecting rod stay well-lubricated, which is crucial for long service life under high loads. Dedicated forgings mean Wiseco can optimize the strutted design for each specific engine, balancing strength with a manageable weight. You'll also find an ArmorGlide skirt coating, which works to reduce friction and noise, while also cutting down on wear on both the piston skirt and the cylinder wall. Plus, each set comes complete with premium rings, so you don't have to hunt for those separately.

This set is specifically for the Chevy Small Block 400 with a 4.165-inch bore and a 1.250-inch compression height, featuring a -15.00 CC dish volume. An accumulator groove is included to help maintain consistent ring seal and power output. Keep in mind these are not CARB approved and cannot be shipped to California.