Hastings 4.000"/101.60 mm Bore +.010" Over Size, 8-Cylinder Ring Set with 2.00 mm Top Ring, 1.50 mm Second Ring and a First Oil Ring is 4.00 mm.
This Hastings 8-Cylinder Ring Set has a top ring manufactured from grey iron with phosphate ring surface treatment, a second ring manufactured from grey iron with 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
1994-1996 Buick Roadmaster
1994-1996 Cadillac Fleetwood
1990-1997 Chevrolet Camaro
1994-1996 Chevrolet Caprice
1990-1996 Chevrolet Corvette
1994-1996 Chevrolet Impala
1990-1997 Pontiac Firebird
Attributes
1st Oil Groove 4.00
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.50
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 4626.010
California Proposition 65 No
Engborein 4.000
Engboremetric 101.60
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 2.00
Top Ring Surface Treatment PHOSPHATE
GTIN 00075538200901