[Wade Congdon]

On most crankshafts the rod feed hole is only drilled to the centerline of the main. This method of drilling doesn’t deliver enough oil to the rod. This creates a high centrifuge, high pressure zone at the main, restricting critical oil flow intended for your rods. As engine rpm increases this centrifuge effect gets worse, which can result in unnecessary crankshaft damage or even total engine failure. This is why All Pontiac/BOP Engineering mandated Straight Shot Oiling which virtually eliminates this problem by utilizing off-center drilling and a teardrop design oil hole, which scoops oil at the main and forces it into the rod feed hole. In addition the entry holes for the rod feed are located near the O.D of the main allowing unrestricted and equalized flow to the rod bearings. See attached Photos