Outfront Motorsports 775 Long Rod Closed Deck Short Block

This closed deck block design has been proven to withstand extreme boost levels resulting in high cylinder pressures without the worry of cracking a sleeve. The billet material that reinforces the combustion area has been further optimized with our V3 closed deck block in the known problem areas making it a far superior product to any sleeved block. With a closed deck block the stock sleeves are still in place eliminating all risk of dropping sleeves and pushing coolant that you have with a sleeved block.

This engine consists of the following parts:

• New OEM Subaru EJ257 case halves
• Rated to 775 BHP as configured
• Assembled with 2mm Longer rods for a better rod to stroke ratio.
• V3 Closed Deck Process
• JE FSR Pistons
• Outfront Motorsports +2mm Longer Tuff Connecting Rods W/ ARP 2000 Bolts
• King Performance Bearings
• New OEM Subaru Nitride Treated 2017+ STI Crankshaft
• Rear Covers, Rear Seal, and Pin Plugs Included!!!