Removal Procedure

WARNING: This page is about a different variant/trim than selected.

Remove the oil pan. Refer to Oil Pan Replacement .
Remove the cylinder head. Refer to Cylinder Head Replacement .

Fig 1: Removing Cylinder Bore Ring Ridge
Courtesy of GENERAL MOTORS CORP.
If a ring ridge is present, remove the ring ridge as follows:
1. Turn the crankshaft until the piston is at the bottom of the stroke.
2. Place a cloth on top of the piston.
3. Use a ridge reamer to remove the ring ridge.
4. Turn the crankshaft so the piston is at top of the stroke.
5. Remove the cloth and cutting debris.
Fig 2: View Of Connecting Rod Nuts And Caps
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Place the numbers on connecting rods and the connecting rod caps. The connecting rod caps must be assembled to their original connecting rods.
Remove the connecting rod nuts and the connecting rod cap.
Discard the bolts and nuts.

Fig 3: J-43966-1 Installed Into Connecting Rod Bolt Holes
Courtesy of GENERAL MOTORS CORP.
Remove the connecting rod and the piston out of the top of the engine block using the J 41742 and J-43966-1 .
Clean the cylinder bores with hot water and detergent or with a light honing.
Swab the bores with the engine oil and a clean, dry cloth.