Wiseco Chevy Small Block 4.020in Bore 1.125in CH -5.00 CC Piston Set

What you get in this box is a complete set of eight Wiseco Professional Series forged pistons, ready to go into your Chevrolet Small Block engine. These aren't just any pistons; they're built for serious racing and heavy-duty applications where durability and performance are absolutely critical. They're designed to handle the kind of stress that comes with severe duty builds, helping you push your engine's limits.

Wiseco makes these pistons right here in the USA from 2618 aluminum, which gives them improved tensile strength for handling high pressures and temperatures. You'll notice they feature precision ring grooves, an anti-detonation groove, and other features aimed at improving ring seal, which is key for compression and preventing blow-by. The piston crowns are fully machined, and they even come with an ArmorGlide skirt coating. This coating helps reduce friction, resist seizure, and makes for quieter operation, all while keeping the pistons running true.

For builders looking to maximize performance and reliability in a demanding engine, these pistons are a solid choice. They're equipped with forced pin oiling to ensure the wrist pins stay well-lubricated under extreme conditions. Keep in mind these pistons are not CARB approved and cannot be shipped to California. You'll want to refer to the manufacturer's installation instructions for specific details on fitting these into your engine build.