JE Pistons Toyota 4A-GE 20V 81.5mm Bore (Size +.50mm) 12.0:1 CR 6.5cc Dome Piston (Set of 4)

This JE Pistons set gives you four forged pistons, complete with high-quality wrist pins, locks, and JE Pro Seal premium piston rings, ready to be installed in your Toyota 4A-GE 20V engine. These pistons are specifically sized for an 81.5mm bore, which is a 0.50mm overbore from the standard size, and feature a 12.0:1 compression ratio with a 6.5cc dome volume. They are designed to handle the demands of performance applications, offering a solid combination of durability and optimized power output.

Crafted from 2618 aluminum, these pistons are forged and machined entirely in the USA, a material chosen for its high tensile strength crucial for high-demand performance builds. JE Pistons incorporates their proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a reduced skirt width and a shorter wrist pin, also saving weight. Depending on the specific application, these pistons may also feature an accumulator groove to reduce combustion gas pressure, improving ring flutter and ensuring a consistent ring seal for reliable power delivery. Additionally, a skirt coating, if included for this application, further reduces friction and wear on the piston skirts and cylinder walls, contributing to quieter operation.

When rebuilding or enhancing your 4A-GE 20V engine for performance, these JE Pistons offer a well-built solution. They are engineered specifically for this engine and its intended use, aiming for optimized performance and durability. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.