[Marshall57]

I don't hear you complaining about heat, so I am with Mr. Lott. I believe you have a good engine, but you should check that rock back trick when the engine is hot (great trick 1930 coupe) I would keep an eye on the oil and the temp and look for other causes for your trouble. I would also add a ground strap between the frame and the engine/tranny. I'm thinking that after a new rebuild you will hear and feel lots of things that spell disaster but are nothing more than new a engine sounding and feeling different than your old engine. please keep us posted.