(bottom) ROX Race Block (front) 139 GM PERFORMANCE PARTS R0X RACE BLOCKS NEW ... The new GM small-block R0X V-8 engine package is ... spread bores such as cylinder heads, intake manifolds and other aftermarket parts. ... parts can be purchased from your local GM Performance Parts dealer. Specialty ... page 132 for complete specifications. GM Performance Parts R0X Block Technical ... Notes: CNC-machined, Cast iron competition block 7/16" Priority main ... 093" .835" lifter bores (1.06 max.) 42 intake, 52 exhaust, can be relocated Cam lobe ... Tested to over 800 horsepower! 25534453 283 Main, ROX Series Block SB2.2 Lifter ... for P/N 88958667 cylinder head 25534452 283 Main, ROX Series Block Gray Iron CNC- ...
Bare Large Valve Cast Iron High-Performance Head (intake) C Bare ... Large Valve Cast Iron High-Performance Head (combustion ... first introduced on the 1960 Corvette 283 V-8 and later used on high performance ... as the 327 F.I. Corvette and 302 Z/28. GM Performance Parts has updated and ... Non-Vortec Head Technical Notes: Cast iron cylinder head 64 cc combustion chamber ... Heat risers Requires early model intake manifolds .530" Max valve lift Use P/ ... Valve seats can be machined for 2.02" intake valves Valve spring seat diameter is 1 ... .48" C. 12480092 Bare Large Valve Cast Iron High-Performance Head Machined for 2. ... no studs or guide plates 88958692 Bare Cast Iron High Performance Leaded Fuel Head ... bare, no studs or guide plates Same casting as P/N 12480092 THE PHASE 3 CAST IRON ...