JE Pistons Nissan FJ20 89.5 Bore +.50 Oversize 8.5:1 CR -10.7cc Dome (Set of 4 Pistons)

Starting with a 2618 aluminum forging, these JE Pistons for your Nissan FJ20 are built for serious performance. This set is specifically sized at 89.5mm, which is a +.50 oversize, and features an 8.5:1 compression ratio with a -10.7cc inverted dome. This combination is designed to handle the demands of high-performance applications, offering a solid balance between strength and the compression needed for boosted or naturally aspirated builds.

JE Pistons uses a proprietary Forged Side Relief (FSR) design, which helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin, saving weight where it counts. Depending on the specific application, these pistons may also feature an accumulator groove to help manage combustion gas pressure, improving ring seal and keeping power consistent. A skirt coating, if included for your application, further reduces friction and wear on the cylinder walls, contributing to quieter operation and longer life. Every piston is forged and machined 100% in the USA, ensuring a high level of quality control and using materials like 2618 aluminum for its high tensile strength, crucial for demanding engine builds.

This kit comes complete with high-quality wrist pins, locks, and JE's Pro Seal premium piston rings, so you have the essential components ready for installation. Keep in mind 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.