Wiseco Chevy Big Block 4.320in Bore 1.645in CH 32.00 CC Piston Set

If you're building a serious performance Chevrolet Big Block engine, these forged pistons from Wiseco are a solid choice. They're designed for heavy-duty racing applications where durability and consistent performance are critical. Wiseco makes these pistons in the USA from 2618 aluminum, which gives them improved tensile strength for handling the high stresses of racing.

You'll find precision ring grooves, an anti-detonation groove, and other features aimed at improving ring seal, which is key for compression and power. They also come with an ArmorGlide skirt coating. This coating helps reduce friction, makes operation quieter, and resists seizure, all important for keeping your engine running strong under extreme conditions. The fully machined crown and forced pin oiling are also notable details that show these are built for demanding use.

This set includes eight pistons, ready for your next engine build. Keep in mind these are not CARB approved and cannot be shipped to California. You'll want to check the manufacturer's instructions for specific installation details, especially regarding pin fitment and ring gap settings for your particular application.