SKU OUT-SB-GG
 
This Block Is Our Base Non Closed Deck (Semi Closed) EJ257 With Forged Internals. This is for 500 WHP or less.
This engine consists of the following parts:
Seasoned EJ257 case halves
Forged Pistons (Default is CP but you can choose any shelf JE, Manley, or CP piston)
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!!