Wiseco Chevy Big Block 4.320in Bore 1.270in CH 45.00 CC Piston Set

If you're rebuilding a high-performance Chevrolet Big Block engine for serious racing or heavy-duty use, these Wiseco Professional Series pistons are built to handle the stress. They're designed to be a robust foundation for builds that demand maximum durability and performance under severe operating conditions. Wiseco has packed these pistons with features that serious racers rely on to push their engines to the limit.

These pistons are forged and machined in the USA from 2618 aluminum, which offers improved tensile strength compared to other aluminum alloys. You'll find precision ring grooves, an anti-detonation groove, and other features designed to enhance ring seal, which is critical for power and longevity. They also come with an ArmorGlide skirt coating that helps reduce friction, resist seizure, and operate more quietly. The fully machined crown ensures accuracy and consistency for each piston in the set.

This set includes eight pistons, each designed with forced pin oiling to ensure the wrist pin receives adequate lubrication. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For a severe duty race build, these Wiseco pistons offer a well-built solution.