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Hastings Manufacturing 6955
Hastings 1-Cylinder Ring Set; Hastings 3.3125" Standard Bore, 1-Cylinder Ring Set with 1/16" Top Ring, 1/16" Second Ring and a First Oil Ring is 5/32".
Hastings Manufacturing 9547S
HASTINGS SINGLE CYL RING SET; Hastings 3.248"/82.50 mm Standard Bore, Single Cylinder Ring Set with 1.50 mm Top Ring, 1.50 mm Second Ring and a First Oil Ring is 2.00 mm.
Hastings Manufacturing SM8550S025
HASTRACE SINGLE CYL RING SET; Hastings Racing 4.125" Bore +.025" Over Size, Single Cylinder Ring Set with 4/93" Top Ring, 4/93" Second Ring, 4/93" Third Ring and a First Oil Ring is 3.00 mm.
