Closed Deck EJ257 V3 Long Rod Short Block Hardware With each model change from

With each model change from Subaru engineers

New O-ring provided

Fuel Temperature Correction

DEFAULT: Manley Custom Forged Piston Set Made for EJ255 W/ D25 Heads

Whether you want the ability to precisely align your cam gears

Closed Deck EJ257 V3 Long Rod Short Block Hardware With each model change fromThis 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