Hastings 4.065"/103.25 mm Standard Bore, 8-Cylinder Ring Set with 1.50 mm Top Ring, 1.20 mm Second Ring and a First Oil Ring is 2.00 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 ductile 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
2009-2015 Cadillac CTS
2012-2015 Chevrolet Camaro
2009-2013 Chevrolet Corvette
Attributes
1st Oil Groove 2.00
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.20
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2M5275
California Proposition 65 No
Engborein 4.065
Engboremetric 103.25
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 1.50
Top Ring Surface Treatment PLASMA MOLY
GTIN 00075538356103