Hastings 3.504"/89.00 mm Bore +.030" Over Size, 6-Cylinder Ring Set with 1.20 mm Top Ring, 1.50 mm Second Ring and a First Oil Ring is 3.00 mm.
This Hastings 6-Cylinder Ring Set has a top ring manufactured from steel with chrome ring surface treatment and second ring manufactured from grey iron with a phosphate ring surface treatment. The 1st oil control ring is manufactured of steel rail/stainless expansion with a chrome rail ring surface treatment.

Application Summary:

Year Make/Model
2000-2005 Buick Century
2000-2001 Chevrolet Lumina
1999-2003 Chevrolet Malibu
1999 Oldsmobile Cutlass
2000-2003 Pontiac Grand Prix
Attributes
1st Oil Groove 3.00
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.50
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2C4979.030
California Proposition 65 No
Engborein 3.504
Engboremetric 89.00
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
Notes W/Shallow Oil Grv.
SDR Required Flag N
Top Groove 1.20
Top Ring Surface Treatment CHROME
GTIN 00075538244714