Wiseco Chevrolet LT1 -.4cc DI Dome 1.3260 X 4.070 - Set of 8

Starting with a 2618 aluminum forging, these Wiseco pistons are built for the demands of high-performance Chevrolet LT1 engines. The Race Engineered Design (RED) series means they're precision-machined in the USA to offer the strength and durability needed for serious racing, whether you're on the drag strip or the circle track. The specific -.4cc DI dome design is tailored for LT1 applications, helping to achieve optimal compression and combustion characteristics.

You'll find some smart details here that make a difference. The horizontal slot oiling in the pin bores is a key feature for keeping the wrist pins and connecting rod small ends properly lubricated, which is crucial for longevity under high stress. Wiseco also uses dedicated forgings for each engine application, allowing them to create a strutted design that maximizes strength while keeping weight down. Plus, the ArmorGlide skirt coating is there to reduce friction and noise, while also cutting down on wear to the piston skirts and cylinder walls.

This set includes eight pistons, each with a -.4cc DI dome and a 4.070-inch bore size, along with premium rings to get you started. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For a build like this, you'll want to consult the manufacturer's installation instructions for specific details on assembly and break-in procedures.