We now carry this convenient 12 point bolt kit for use with our high volume billet oil pumps and/or 200-1180 billet aluminum covers. Because the aluminum covers are thicker than a standard cast iron cover, they require a longer bolt to attach the assembled pump assembly to the engine. This bolt kit includes the 4 bolts which attach the pump to the engine, as well as the 2 smaller bolts (and custom small diameter washers) which attach the billet aluminum cover to the pump body. This bolt kit is a must have item when using our aluminum pump body and/or cover.