Wiseco Chevy LT1 4.125in Bore 1.105in CH -6.90 CC Piston Set

What you get in this Wiseco piston set are eight forged pistons, ready to be installed in your Chevrolet LT1 engine. These aren't your average pistons; they're built with serious racing and high-performance builds in mind, designed to handle the kind of stress that comes with heavy to severe duty applications. They feature a 4.125-inch bore and a 1.105-inch compression height, making them a specific choice for certain engine configurations.

Wiseco forges these pistons in the USA from 2618 aluminum, a material chosen for its improved tensile strength, which is crucial when you're pushing an engine hard. You'll find precision ring grooves, an anti-detonation groove, and other features aimed at improving ring seal, all contributing to better performance and durability. The pistons also come with an ArmorGlide skirt coating. This coating helps reduce friction, resist seizure, and operate more quietly, which are all important factors in a high-performance engine. The fully machined crown ensures accuracy and consistency across all eight pistons.

Forced pin oiling is another detail that shows these pistons are built for demanding use, helping to keep the wrist pins properly lubricated under extreme conditions. If you're building a race engine or a very high-output street performance motor for your LT1, these Wiseco pistons are a solid option designed to meet those challenges. Keep in mind these are not CARB approved and cannot be shipped to California.