Hastings 3.575"/90.80 mm Bore +.060 " Over Size, 4-Cylinder Ring Set with 2.00 mm Top Ring, 2.50 mm Second Ring, and a First Oil Ring is 4.00 mm.
This Hastings 4-Cylinder Ring Set has a top ring manufactured from grey iron with triple chrome ring surface treatment and a 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
1971-1974 Ford Pinto
1971-1974 Mercury Capri
Attributes
1st Oil Groove 4.00
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 2.50
2nd Ring Surface Treatment PHOSPHATE
California Proposition 65 No
Engborein 3.575
Engboremetric 90.80
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 2.00
GTIN 00075538024859