Wiseco Pro Tru Street Chevy Big Block 4.250in Bore 1.270in CH 21.00 CC Piston Set

If you're rebuilding the heart of your Chevy Big Block and want reliable performance for the street, this Wiseco Pro Tru Street piston set is a solid choice. These pistons are built to handle the demands of regular driving while offering improved durability over stock components. They are forged from 4032 alloy aluminum, a material chosen for its strength and ability to handle thermal expansion well, which is crucial for street applications where temperatures can fluctuate.

Wiseco manufactures these pistons in Mentor, Ohio, using an advanced forging process that creates a strong, well-built component. The ArmorGlide skirt coating is a notable feature that helps reduce friction, leading to quieter operation and better resistance to seizure, especially important for a street-driven engine. The AS-forged dome design includes features for oil drain-back, helping to manage lubrication effectively. This set comes complete with chromium alloy steel piston pins, Spirolox retaining clips, and high-quality piston rings, making it an all-inclusive package for your engine rebuild.

This set is designed for a 4.250-inch bore with a 1.270-inch compression height and a 21.00 CC combustion chamber volume. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Ensure you check all manufacturer specifications and installation guidelines before beginning your rebuild.