JE Pistons Toyota 1FZ-FE 100.5mm Bore + .50 Size 8.5:1 CR Pistons

JE Pistons is known for making well-built forged racing pistons, with over 75 years of experience. They've applied that knowledge to this specific piston set for the Toyota 1FZ-FE engine. If you're rebuilding the top end of your 1FZ-FE and need pistons that can handle serious performance, these are a solid option. They are forged in the USA using 2618 aluminum, which gives them the high tensile strength needed for demanding applications.

These pistons feature JE's proprietary Forged Side Relief (FSR) design, which helps minimize friction and power loss by using a reduced skirt width. This design also saves weight, especially with the shorter wrist pin. Depending on the specific application, they may include an accumulator groove to help reduce combustion gas pressure, which can improve ring seal and prevent fluttering. Some applications also come with a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, which can also help quiet down engine noise. The bore size is 100.5mm, which is a +0.50 oversize, and they have a compression ratio of 8.5:1.

This kit includes everything you need to get started: six pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings. They are designed specifically for the 1FZ-FE 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.