| Subject: | Revised Installed Dimensions For Engine Block Rear Oil Gallery Plug |
| Models: | 1997-99 Chevrolet Corvette |
| 1999 Chevrolet and GMC C/K Models (Silverado and Sierra) |
| with 4.8 L, 5.3 L, 5.7 L or 6.0 L V8 Engine
(VINs V, T, G, U -- RPOs LR4, LM7, LS1, LQ4) |
This bulletin revises the installed dimensions for the engine block
rear oil gallery plug in the Engine Block Plug Removal, Engine Block Plug
Installation, and Engine Rear Cover Installation procedures. This information
replaces specifications and figures currently in the Service Manual.
Install the engine block rear oil gallery plug into the oil gallery
bore. A properly installed block plug will protrude 0.8-1.4 mm
(0.031-0.055 in) beyond the rear face of the block.
