JE Pistons - 291059 - Sport Compact - Subaru - EJ25 - Piston and Ring Kits
JE Pistons Sport Compact Pistons are specifically engineered for extreme applications up to, and including, professional competition. In this environment, higher compression ratios, extreme boost levels and, heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy. The JE Piston Sport Compact Piston has a dome/dish that requires no deburring or preparation plus features a smooth flowing radii for excellent flame travel.
- Brand: JE Pistons
- Manufacturer's Part Number: 291059
- Category: Piston and Ring Kits
- Product Type: JE Pistons Sport Compact Series
- Fitment: Subaru EJ255 / EJ257 Block with EJ20 Head "FSR"
- Bore Size (mm): 99.50
- Oversize (mm): STD
- Stroke (mm): 79.0
- Rod Length (mm): 130.5
- C/D (mm): 30.7
- Head CC's: 48
- Compression Ratio (with .026): 8.5:1
- Dish/Dome CC: -25.5
- Gram Weight: 411
- Footnote: T
- Skirt Type: F
- Ring Set Included: JG4904-3917
- JE ProSeal Head Gasket: SB1001-039
- Quantity: Sold as a kit.
- Notes: NA
Footnotes: F= FSR (Forged Side Relief), T= Accepts Turbo and Nitrous