Closed Deck V3 Base Shortblock Case Bolts You really can drop them

You really can drop them in and go but our testing has proven to give a pro-tuner better timing control higher in the power band

2010 Subaru Impreza WRX 2

NEW AS OF 8/2015 precision block decking registering from the mains

and Grade 5 Titanium retainers

Closed Deck V3 Base Shortblock Case Bolts You really can drop themThis 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