Engine - GM Performance Short Block Engines - Block, 350 NASCAR Busch Series 327 Crank

From GM Performance - These 350 CNC blocks are designed for NASCAR series racing. They are light weight with the following specifications. CNC machined, 2.30 inch crankshaft diameter, 9.025 deck height, Bulk heads machined at 5 degrees, special steel main caps, 6AN water drain, 45 degree - 10 front oil feed, 4 center valley drains drilled and tapped, steam holes between cyl. .0750 from deck, 4.115 inch bores diameter, 58mm roller cam bearings, .875 inch lifter bore diameter, AN o-ring plug replacement pipe plugs, 1/2 inch NPS water hole each side of block 45 degree - 10 valley scavenge.