Wiseco CHV BIG BLOCK DRAG 1.645CH 4280A Piston Shelf Stock

If you're building a serious drag racing engine for a Chevrolet Big Block, you need pistons that can handle the extreme demands of competition. These Wiseco Professional Series pistons are built for just that purpose. They're forged and machined right here in the USA from 2618 aluminum, a material known for its improved tensile strength under high heat and stress.

You'll find a precision-machined crown with features like anti-detonation grooves and improved ring seal to help keep combustion contained and efficient. The ArmorGlide skirt coating is applied to reduce friction and resist seizure, while also contributing to quieter operation. Plus, the forced pin oiling ensures the wrist pin stays well-lubricated, a critical detail in high-performance applications.

These pistons are designed and built to withstand heavy to severe duty race builds, so you can push your engine to its limits on the drag strip. Keep in mind that these are not CARB approved and cannot be shipped to California.