JE Pistons BBC BLOWN ALKY DM Set of 8 Pistons

This is a set of eight JE Pistons, specifically designed for BBC (Big Block Chevrolet) engines intended for blown alcohol (alky) applications. You get the pistons themselves, ready to be installed in your engine build. These pistons are forged in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for engines operating under extreme stress and high cylinder pressures common in blown alcohol racing. They feature a dome design and are built for a 4.500-inch bore size, with a 1.520-inch compression distance and a 0.990-inch wrist pin diameter.

JE Pistons brings over 75 years of experience to these components, focusing on durability and performance for racing. The proprietary Forged Side Relief (FSR) forging design is notable; it helps minimize friction and power loss by reducing skirt width, and a shorter wrist pin further saves weight. Depending on the specific application, these pistons may also include an accumulator groove to manage combustion gas pressure, which helps prevent ring flutter and improves ring seal for consistent power delivery. Some applications also feature a skirt coating designed to reduce friction and wear on the piston skirts and cylinder walls, contributing to quieter operation and longer life.

These pistons are engineered and machined 100% in the USA, ensuring they meet stringent manufacturing standards. They are designed specifically for each engine and racing application to offer an optimized balance of performance and durability. While these pistons are built for victory lane on the dirt track or drag strip, please note they are not CARB approved and cannot be shipped to California. For a high-demand performance build, these JE Pistons are a solid option.