JE Pistons and Rings 100 Bore 8.5:1 Comp Subaru EJ257 Block W/ EJ20 Head

Part #: 291060. These JE Pistons and Rings for the SUBARU EJ257 BLOCK WITH EJ20 HEAD 'FSR' feature a brand - new high - strength FSR forging design. They're not only strong but also lightweight. After extensive on - track testing, they ensure perfect performance for your Subaru WRX and STI even in tough conditions. Key features include: 2618 T6 high - tensile forged aluminum; specifically designed for high - horsepower Subaru engines; domes and dishes with smooth radii for great flame travel; 1.2 x 1.2 x 2.5mm ring widths; a.905 x 2.500 straight - wall carbon steel wrist pin; pin fitting, Tru Arc locks, and JE Pro Seal Rings are all included. You'll get 4 pistons and 4 rings in one package.

Using these JE Pistons and Rings is straightforward. First, make sure your Subaru EJ257 block with EJ20 head is clean and free of any debris. Then, carefully install the pistons and rings according to the standard engine assembly procedures. When installing, handle the parts gently to avoid any scratches or damages. As for maintenance, it's a good idea to regularly check the pistons and rings for wear and tear. Every time you do an engine tune - up, take a look at them. If you notice any abnormal wear, such as excessive ring gap or piston scoring, it might be time to replace them. Also, always use high - quality engine oil to keep everything lubricated and running smoothly.