C 2500 Yukon XL 2WD V8-8.1L VIN G (2002)
Crankshaft Main Bearing: Specifications
Engine Mechanical Specifications - (Unit Repair)
Engine Block (Production Specifications)
Main Bearing Bore Diameter ............................................................................................................................ 74.6060-74.6220 mm (2.9372-2.9379 inch)
Lifter Bore Diameter ................................................................................................................................................. 21.417-21.443 mm (0.843-0.844 inch)
Deck Height from Crankshaft Bore ................................................................................................................... 259.875-260.125 mm (10.231-10.241 inch)
Head Deck Surface Flatness (entire face) .......................................................................................................................................... 0.100 mm (0.004 inch)
Head Deck Surface Flatness within 150 mm (6 inch) ........................................................................................................................ 0.050 mm (0.002 inch)
Crankshaft Bearing Clearance #1, #2, #3, #4 Production ......................................................................................... 0.022-0.052 mm (0.0008-0.0020 inch)
Crankshaft Bearing Clearance #5 Production ........................................................................................................... 0.035-0.067 mm (0.0014-0.0026 inch)
Crankshaft Bearing Clearance #1, #2, #3, #4 Service Limit ..................................................................................... 0.022-0.089 mm (0.0008-0.0035 inch)
Crankshaft Bearing Clearance #5 Service Limit ....................................................................................................... 0.035-0.102 mm (0.0014-0.0040 inch)