piston ring set, Moly .005" oversize File Fit 1/16, 1/16, 3/16 standard tension oil ring for use in a finished cylinder bore size of 4.030. Excellent HP street, street strip or racing ring. Special high density moly surface top ring gives quick sealing, long life and great power. This is .030 oversize for engines with an original stock size 4" bore.
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