Overview
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
