JE Pistons and Rings 100 Bore 8.5:1 Comp Subaru EJ257 Block W/ EJ20 Head vendor_Tein ACT's SB9-HDSS kit features a

ACT's SB9-HDSS kit features a performance street sprung clutch disc paired with their ever popular Heavy Duty pressure plate

2x Coolant Cross Over O-Rings

improved balance

Please Note When Ordering Bearings: Engine bearings require proper tolerance to be measured before purchase

JE Pistons and Rings 100 Bore 8.5:1 Comp Subaru EJ257 Block W/ EJ20 Head vendor_Tein ACT's SB9-HDSS kit features aPart #: 291060 JE Pistons and Rings SUBARU EJ257 BLOCK WITH EJ20 HEAD "FSR" New high strength FSR forging design! JE Pistons new FSR forgings are both strong and lightweight! The new FSR design has undergone extensive on track testing to ensure flawless performance under the most demanding conditions for your Subaru WRX and STI. Features: 2618 T6 high tensile forged aluminum Specifically engineered for high horsepower Subaru engines Dome and dishes