Wiseco Pro Tru Street Chevy Big Block 4.250in Bore 1.760in CH 21.00 CC Piston Set

Wiseco is well-known for making strong, reliable forged pistons for a wide range of performance applications. If you're rebuilding a Chevy Big Block engine, their Pro Tru Street piston set is a solid choice designed to get your vehicle back on the road or down the track with confidence. These pistons are forged from 4032 alloy aluminum, a material chosen for its balance of strength and lighter weight compared to cast alternatives, which helps with overall engine performance.

What sets these pistons apart is the ArmorGlide skirt coating. This isn't just for looks; it's applied to reduce friction between the piston skirt and cylinder wall, leading to less wear over time and a quieter engine operation. The pistons also feature an AS-forged dome with specific crown features and oil drain-backs, which are important for managing combustion and oil flow within the cylinder. You'll also find they come with a chromium alloy steel piston pin and Spirolox clips, making this a complete package for your rebuild.

This set includes everything you need to get your Big Block rebuilt: eight pistons, rings, pins, and clips. They are manufactured in Mentor, Ohio, ensuring a well-built component for your engine. Please note that these pistons are not CARB approved and cannot be shipped to California.