Hastings 3.736"/94.89 mm Bore +.040" Over Size, 8-Cylinder Ring Set with 2.00 mm Top Ring, 2.00 mm Second Ring and a First Oil Ring is 4.75 mm.
This Hastings 8-Cylinder Ring Set has a top ring manufactured from steel with plasma moly 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
1993-1999 Chevrolet C1500
1993-1998 Chevrolet C2500
1993 Chevrolet Caprice
1996-2002 Chevrolet Express 1500
1996-2002 Chevrolet Express 2500
1993-1995 Chevrolet G10
1993-1995 Chevrolet G20
1993-1999 Chevrolet K1500
1993-1998 Chevrolet K2500
1993-1999 GMC C1500
1993-1999 GMC C2500
1993-1995 GMC G1500
1993-1995 GMC G2500
1993-1999 GMC K1500
1993-1995 GMC K2500
1998 GMC K2500
1996-2002 GMC Savana 1500
1996-2002 GMC Savana 2500
Attributes
1st Oil Groove 4.75
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
1st Oil Ring Surface Treatment CHROME RAIL
2nd Groove 2.00
2nd Ring Surface Treatment PHOSPHATE
3rd Groove 2.00
Alternate Part Number 2M4742.040
California Proposition 65 No
Engborein 3.736
Engboremetric 94.89
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 PLASMA MOLY
GTIN 00075538178118