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Scoring to the full-floating design piston pin bore (3) or piston pin
Fig. 138: View Of Upper/Lower Compression Rings & Marks
Courtesy of GENERAL MOTORS CORP.
6. Identify the NEW upper and lower compression rings. The upper compression ring can be identified by a
paint mark (3) located 180 degrees from the end gap. The lower compression ring can be identified by a
paint mark (3) located 90 degrees from the end gap. Both rings should be installed with the orientation
marks (1, 2) facing the top of the piston.
2004 Chevrolet Corvette
2004 ENGINE PERFORMANCE Engine Mechanical (Repair Instructions 2 Of 3) - 5.7L - Corvette
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