Wiseco Chevy Big Block 4.605in Bore 1.120in CH 42.00 CC Piston Set

If you're building a serious performance engine for your Chevy Big Block, Wiseco's Professional Series forged pistons are a solid choice. These aren't your average replacement pistons; they're built from the ground up for heavy to severe duty racing applications where durability and performance are critical. Wiseco machines these pistons from 2618 aluminum right here in the USA, which gives them improved tensile strength over other alloys, making them well-suited for the high stresses of racing.

You'll find a lot of attention to detail here. The precision ring grooves are designed for excellent ring seal, and they've included anti-detonation grooves to help prevent detonation damage. The crown is fully machined for a clean combustion chamber, and they even feature forced pin oiling to keep the wrist pins properly lubricated under extreme conditions. Plus, these pistons come with an ArmorGlide skirt coating that helps reduce friction, resist seizure, and quiet down operation, which is a nice touch for a racing piston.

This set includes eight pistons, each designed for a 4.605-inch bore with a 1.120-inch compression height and a 0.990-inch pin diameter. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are designed for builders who are pushing the limits and need components they can rely on.