Wiseco RED Series Chevrolet Small Block 4.135in Bore 1.250in CH -1.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco RED Series pistons are built for the demands of high-performance Chevrolet Small Block engines. The RED (Race Engineered Design) series is all about combining the strength and durability needed for serious racing with precision features that give you an edge, whether you're on the drag strip or the circle track. This set is specifically designed for a 4.135-inch bore, with a 1.250-inch compression height and a 0.927-inch pin diameter.

Wiseco machines these pistons with horizontal slot oiling in the pin bores. This is a smart detail that keeps the wrist pin and the small end of the connecting rod properly lubricated, which is crucial for making sure these parts last under high stress. The dedicated forgings allow for an engine-specific strutted design, meaning Wiseco optimizes the strength-to-weight ratio for this particular application. You also get an ArmorGlide skirt coating, which helps reduce friction and noise while also cutting down on wear on both the piston skirt and the cylinder wall. Each set comes complete with premium rings, so you don't have to source those separately, and an accumulator groove is included to help maintain consistent ring seal and power delivery.

This piston set is a well-built option for anyone rebuilding a performance Chevrolet Small Block. Keep in mind that these are not CARB approved and cannot be shipped to California. For installation, always refer to the manufacturer's instructions for proper procedures and clearances.