Wiseco Forged Piston Set, Your Choice of 4.005" Bore, 3.622" Stroke, 6.125" Rod Length, 1.300" CH, +12cc Dome, Includes Steel Top/Napier 2nd Ring Set!

As a leader in the LS series forged pistons, Wiseco pulled out all the stops when designing this series! It is designed to accommodate the reluctor ring on stroker cranks without having to notch the pin bosses. Offset pins like OE and skirt shapes specifically designed for street applications make these the best available. They have been tested successfully in the highest horsepower applications. All Wiseco "X-series" piston sets now come standard with the GFX 1.2/1.2/3.0mm steel top/napier 2nd ring set and are included in the price!

Features:

Strutted skirt design is the strongest and designed to run at as little as .004" clearance, with excellent skirt wear and minimal noise or rock

Radiused Valve Pocket for detonation resistance and increased flow around valves

Anti-detonation Grooves with the added benefit of keeping the top ring groove free of carbon

3mm oil rings for better oil control and reduced friction for more horsepower

Pressure Groove for enhanced ring seal

Features Chrome Moly Pins and Spiralox (Tool Steel pins optional)

Race-ready domes don't require deburring by the engine builder

Skirt coated for lower friction, reduced noise, and superior life

Multi-fit valve pockets for interchangeability of cylinder heads

2618 Alloy: Will not shatter like hypereutectic or cast pistons