This Block Is Our Base Non Closed Deck (Semi Closed) EJ257 EJ255 +2mm Long Rod Engine With Forged Internals.
This is recommended for 600BHP or less.
This engine consists of the following parts:
- Seasoned EJ257 or EJ255 case halves
- Forged Pistons
- Outfront Motorsports H Beam Rods +2mm Long Rods
- King Performance Bearings
- New OEM Subaru Heat Treated Crankshaft
- 8.5:1 CP EJ257 Pistons