Wiseco RED0087X125 RED Series Chevy Big Block Forged Piston – 4.125 in. Bore, 1.765 in. CH, 42cc Dome

With a 4.125-inch bore, 1.765-inch compression height, 0.990-inch wrist pin diameter, and a 42cc dome, this piston set is engineered for high-compression performance builds targeting serious power output.

Key Features:

• Engineered, forged, and machined in the USA from 2618 aluminum alloy for the tensile strength required in performance racing and power-adder applications
• Dedicated engine-specific strutted forgings optimized for maximum strength-to-weight ratio
• ArmorGlide® skirt coating reduces operating friction and noise while minimizing skirt and cylinder wall wear
• Horizontal slot oiling in pin bores maintains optimal wrist pin and small-end lubrication for extended service life
• Precision-machined features provide a competitive edge on the track

Specifications:

• Bore: 4.125 in.
• Compression Height: 1.765 in.
• Wrist Pin Diameter: 0.990 in.
• Dome Volume: 42cc
• Piston Style: Dome

Designed for drag racing and circle track applications, the RED™ Series piston sets deliver the ultimate balance of performance and value for domestic V8 builds. These pistons are suitable for naturally aspirated, nitrous, and other power-adder configurations common in Chevy Big Block performance engine builds.