Closed Deck EJ257 V3 Long Rod Short Block Off-Road/Adapter Kits 5L SS Sedan

5L SS Sedan

especially when paired with the GSC Manganese bronze valve guides

The Killer B Motorsport Holy Header was developed using state of the art CAD software & simulations to determine the optimal design for increasing power as much as possible throughout the rev range

The end result is a slightly quicker spooling turbo while trading off some high RPM horsepower capability

Nano peened for faster break-in and less spring stress

Closed Deck EJ257 V3 Long Rod Short Block Off-Road/Adapter Kits 5L SS SedanThis 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