ATK High Performance Chevy Gen V 489/496 Short Blocks

ATK High Performance Chevy Gen V 489/496 short blocks deliver a bulletproof bottom end that is perfect for your potent street or race build. These are later model Gen V blocks featuring top-of-the-line Scat forged stroker kits (no provisions for mechanical fuel pumps). They include clocked camshaft bearings set to the OEM position, plus installed/sealed freeze plugs and oil galley plugs. You wouldn't build a house on sand, so don't start your big block Chevy build with anything less than ATK High Performance Chevy Gen V 489/496 short blocks. Features, items, and specs may include: * 4-bolt OE main block featuring one-piece seal * Up to 4.310 x 4.250 bore/stroke * One-piece. Scat 4.250 in. stroke crankshaft (internally balanced) * Scat 4340 forged 6.385 in. connecting rods with ARP 8740 bolts * Forged +20cc dome pistons * Moly piston rings Show Less