Wiseco Pro Tru Street Chevy Big Block 4.280in Bore 1.270in CH 21.00 CC Piston Set

If you're rebuilding a Chevrolet Big Block engine, this Wiseco Pro Tru Street piston set is a solid option. These pistons are forged from 4032 alloy aluminum right here in the USA, which is a strong material that handles the heat and pressure of a performance street engine well. They're designed for a 4.280-inch bore and feature a 1.270-inch compression height, with a 21.00 CC dome volume. This specific design helps achieve a good balance of compression and piston-to-valve clearance for many street applications.

Wiseco includes their ArmorGlide skirt coating on these pistons. This isn't just for looks; it's a specialized coating that helps reduce friction between the piston skirt and the cylinder wall. That means less wear over time, quieter operation, and a bit more power making it to the wheels because less is lost to friction. The pistons also have an AS-Forged dome with features for oil drain-back, which is a smart detail for keeping oil where it needs to be. You'll also find they come with chromium alloy steel piston pins and Spirolox clips, so you get everything you need for the installation in one box.

This set includes eight pistons, along with the necessary pins and clips, making it a complete package for a V8 engine rebuild. While these are built for street performance, it's important to note they are not CARB approved and cannot be shipped to California. Always refer to your engine builder's specifications and the manufacturer's installation instructions for proper assembly and tuning.