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
  • 2618 T6 high tensile forged aluminum
  • Specifically engineered for high horsepower Subaru engines
  • Dome and dishes feature smooth flowing radii for excellent flame travel
  • 1.2 x 1.2 x 2.5mm ring widths
  • .905 x 2.250 straight wall carbon steel wrist pin provided
  • Pin fitting and Tru Arc locks included
  • JE Pro Seal Rings Included
  • Piston Profile Matches EJ20 Chamber Profile
Part # Brand Bore Stroke Rod Deck Head CC Comp. Ratio Comp. Height Crown Vol. Ring Set Head Type Stock Action
296349 JE Pistons 3.927 3.110 5.138 7.913 48.0 8.5 1.209 -26.00 JG4901-3927 Inv Dome/Dish In stock
325249 JE Pistons 3.918 3.110 5.138 7.913 48.0 9.5 1.209 -16.40 JG4901-3917 Inv Dome/Dish In stock
325251 JE Pistons 3.937 3.110 5.138 7.913 48.0 9.5 1.209 -17.00 JG4901-3937 Inv Dome/Dish Back Order
325250 JE Pistons 3.927 3.110 5.138 7.913 48.0 9.5 1.209 -16.70 JG4901-3927 Inv Dome/Dish In stock
291059 JE Pistons 3.918 3.110 5.138 7.913 48.0 8.5 1.209 -25.50 JG4901-3917 Inv Dome/Dish In stock
291060 JE Pistons 3.937 3.110 5.138 7.913 48.0 8.5 1.209 -26.40 JG4901-3937 Inv Dome/Dish In stock