We use brand-new Subaru OEM EJ257 case halves and crankshafts, paired with forged JE pistons & forged Brian Crower ProH625+ connecting rods and cap screws, as well as ACL or King main & rod bearings. Short blocks are built in our dedicated clean facility, and long block assembly is also available.
Brown’s Performance stands behind all of our products, offering a limited warranty with every short block.
Brown’s Performance Stage 3 Subaru Short Block (BP700) Features:
-New Subaru OEM STi Block Halves
-New Subaru OEM STi Crankshaft
-JE 99.5mm Forged Pistons w/ Rings (8.5:1 CR on D25 Cylinder Heads (EJ255) or 8.2:1 CR on B25, V25 and W25 EJ257 Heads with OEM head gasket)
-ACL Race Bearings/ King XP Race if ACL Out of stock
-BC PRO625+ H Beam Rods
-Recommended up to 700 BHP
Brown’s Performance short blocks include a 12 month/12,000 Mile limited warranty, pending engine registration with proof of professional installation & proper maintenance.
We provide two prepaid oil analysis kits from Blackstone laboratories; samples should be taken during the break-in period at 50 and 500 miles. Warranty will be void if these are not utilized.
Our BP700 short block is the most popular option for the daily driver who wants to safely turn up the boost.