Wiseco Chrysler HEMI 426 4.310in Bore 1.765 Compression Height +90cc Dome Top Pistons

These Wiseco pistons start with a 2618 aluminum forging, chosen for its high tensile strength, which is crucial when you're pushing a big-block Hemi to its limits. They're machined right here in the USA to exacting standards, featuring a +90cc dome that's fully machined for precise compression ratios. You'll also find precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal, all contributing to better performance and durability under extreme conditions.

Wiseco also applies their ArmorGlide skirt coating to these pistons. This isn't just for looks; it's a functional coating that helps reduce friction, resist seizure, and even makes for quieter operation. The forced pin oiling system ensures the wrist pin gets plenty of lubrication, a small detail that makes a big difference in longevity for high-stress builds. These are built for serious racers and builders who need components that can handle heavy to severe duty performance applications without compromise.

This set includes eight pistons, ready for your 426 Hemi build. Keep in mind that these are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.