The signature NMS 9-Yard block is our entry level Subaru block. The 9-Yard block upgrades. Upgrading the OEM components that are prone to failure. Our short block comes fully equipped with 2.5L 99.5mm bore engine case halves. The short block internals are then composed of factory heat treated crank that is standard on all 2012+ STI paired with ACL performance bearings match together with a set of Manley H-Beam rods. The block is then sealed with factory case bolts, and then CP Pistons are measured and installed completing the block.
NMS 9Yard Short Block also comes with a 6 months / 12,000 mile Limited Warranty.
Model Year & Fitment