This Block Is Our Base Non Closed Deck (Semi Closed) Hybrid Ej25 W/ EJ20 Heads With Forged Internals. This is for 500 WHP or less.
- Seasoned EJ257 case halves
- JE Forged Pistons for use w/ EJ20 heads from the EJ205 Engines (Default is JE but Custom CP is also available)
- Outfront Motorsports H Beam Rods
- King Performance Bearings
- New OEM Subaru Heat Treated Crankshaft
- DEFAULT: 8.2:1 EJ257 Pistons UNLESS you select a different Block Configuration in the pulldown.
- 8.4:1 EJ255 Pistons (D25 Heads 06+ WRX)
- 9:1 EJ257 Pistons
- 10:1 EJ257 Pistons
No Core required!!
If you have higher power goals or are looking for something different from this block, feel free to contact us to get the correct built block for your application. All of our builds can be completely customized. All of our assembly is done in house in our clean room to ensure excellent quality control. Our Blocks are all bored/honed using torque plates. All tolerances are double checked and all parts are thoroughly cleaned and inspected prior to assembly.