This listing is for a set of Hastings cast Pistons rings and King Engine Rod and Main bearings compatible replacements for GM Chevy Car & Trucks 5.7L / 350 OHV V8 16V 4.000" BORE 1967-1995 SBC engines. Does not fit Vortec with metric rings. Piston Rings are 5/64" 5/64" 3/16" with deep oil ring and available in Std (4.00" Bore), +.020"(4.020" Bore), +.030" (4.030" Bore), +.040" (4.040" Bore), +.060" (4.060" Bore), or +.080" (4.080" Bore) over sizes. Rod & Main Bearings are available in STD, .001/.026MM .010/25MM, .020/50MM, .030/75MM, .040/100MM under sizes. IF OVER SIZES ARE NEEDED, PLEASE CALL or MESSAGE US WITH THE BORE SIZE AND BEARING SIZES YOU NEED TO VERIFY AVAILABILITY BEFORE ORDERING, OTHERWISE YOUR KIT WILL SHIP WITH ALL STANDARD SIZES.