Wiseco Chrysler Small Block Mopar Gen III 6.1L Hemi 4.08 Bore 4.050 Stroke -18.0 CC Dome

If you're building a high-performance Mopar Gen III 6.1L Hemi engine for serious racing or heavy-duty applications, you need pistons that can handle the stress. This set of eight forged pistons from Wiseco is designed to meet those demands. They feature a 4.080-inch bore and a -18.0 CC dome, which is a key spec for achieving specific compression ratios when paired with the right cylinder heads and gasket. These aren't your average pistons; they're built from 2618 aluminum, a material chosen for its improved tensile strength under extreme heat and pressure.

Wiseco machines these pistons in the USA, paying close attention to details like precision ring grooves, anti-detonation grooves, and features that enhance ring seal. This means better combustion control and less blow-by, which are critical for maximizing power and durability in a race engine. They also come with an ArmorGlide skirt coating. This coating helps reduce friction for improved efficiency and quieter operation, while also providing resistance to seizure, a common issue in high-stress engine builds. The fully machined crown ensures a clean combustion chamber surface, and forced pin oiling helps keep the wrist pins properly lubricated under load.

When you're pushing an engine hard, every component needs to be up to the task. This Wiseco piston set is engineered for those severe duty performance applications, giving you the confidence that your engine's foundation is solid. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For optimal results, always refer to the manufacturer's installation instructions and recommended assembly procedures.