I have a modified 261 installed in our '40 Chev convertible. Mods are cam, headers, Holly "Pro Jection", HEI, PVC system, 848 head with port work, .080 bore with forged pistons to 9.5 to 1, balanced. Engine runs great, pulls like a mad mule but....leaks oil out the rear main to the tune of a quart every 500 miles with oil all over the bottom of the car!!! I started with an old (years old gasket kit) rope seal and it seemed to go pretty well for a few thousand miles, then began to leak worse as time went on. I pulled the pan and installed one of the new style rubber lip seals and that made it worse than ever! What do I do to stop or at least make the leakage liveable? I was told that the old style rope seals are different than the stuff being made today...any thoughts on that? Thanks for the help.
