JE Pistons Kit - 8.5:1Cr - 99.5mm Bore - Subaru - EJ257 (With EJ20 Head) 87-25 all applicable bearings

all applicable bearings

but a upgraded single spring kit will do the job under 8000 rpm

Reference Number: 856800-5003S

Part Number: SC7481

JE Pistons Kit - 8.5:1Cr - 99.5mm Bore - Subaru - EJ257 (With EJ20 Head) 87-25 all applicable bearingsManufacturer Brand: JE Pistons Part Number: 291059 Compression Ratio: 8. 5: 1 Bore (mm): 99. 5 ( STD) Stroke (mm): 79 Rod Length (mm): 130. 5 Pin Diameter (mm): 23 Compression Height (mm): 30. 7 Block Height (mm): 201 Piston weight (Gr): 411 Replacement Parts: Pin: Rings: JG4904 3917 Locks: Piston profiles matches EJ20 combustion Chamber 2618 T6 high tensile forged aluminum JE designs are specifically engineered for extreme applications up to, and