Notes: Standard;Use w/H654P piston; Standard Size; Ring Groove Widths: 5/64, 5/64, 3/16 (in.); Grey Iron w/Phosphate top ring; Grey Iron w/Phosphate Coating 2nd ring
Bore Diameter: 4.000"
Cylinder Quantity: 8
Outside Diameter: 4.000"
Package Alert: Full Set
Ring Material: Iron
Size: Standard
UPC: 053059132727
Part Description: 1991 Mercury Cougar Premium Piston Ring Set W O Coating