Engine Block Specifications
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Suburban, and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER BORE
| Application | In. (mm) | |
|---|---|---|
| Diameter | ||
| Production | 4.2500-4.2507 (107.950-107.968) | |
| Service | 4.2496-4.2516 (107.940-107-990) | |
| Out-Of-Round | ||
| Production (Maximum Minus Minimum Bore Diameter) | 0.0007 (0.0180) | |
| Service (Maximum Minus Minimum Bore Diameter) | 0.002 (0.050) | |
| Taper Production | 0.0007 (0.0180) | |
| Taper Service | ||
| Thrust Axis | 0.002 (0.050) | |
| Pin Axis | 0.002 (0.050) | |
ENGINE BLOCK (PRODUCTION SPECIFICATIONS)
| Application | In. (mm) |
|---|---|
| Main Bearing Bore Diameter | 2.9372-2.9379 (74.6060-74.6220) |
| Lift Bore Diameter | 0.843-0.844 (21.417-21.443) |
| Deck Height From Crankshaft Bore | 10.231-10.241 (259.875-260-125) |
| Head Deck Surface Flatness (Entire Face) | 0.004 (0.100) |
| Head Deck Surface Flatness Within 6" (150 mm) | 0.002 (0.050) |