JE Pistons 440 MOPAR FT Set of 8 Pistons

If you're building a high-performance Mopar Big Block 440 engine, a solid set of pistons is where you start. This is a set of eight forged pistons from JE Pistons, designed specifically for the 440 FT (Chrysler B/RB engine family) with a 4.350-inch bore. JE Pistons has been a leader in forged racing pistons for over 75 years, and these are made entirely in the USA.

These pistons are forged from 2618 aluminum, a material known for its high tensile strength, which is crucial for handling the demands of performance applications. JE Pistons uses a proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by reducing skirt width. This design, along with a shorter wrist pin, also saves weight. Depending on the specific application, these pistons may also feature an accumulator groove to help reduce combustion gas pressure, improving ring seal and maintaining consistent power. Some applications also include a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, which can also help quiet down engine noise.

This kit includes everything you need for an 8-cylinder engine, with a flat-top design and specific dimensions like a 1.858-inch compression distance and a 0.990-inch wrist pin. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For serious engine builds, JE Pistons are a proven choice, trusted from dirt tracks to drag strips.