what kind of oil for new rebuild

demon seed said
Nice looking lung DTK, what all have you done to it and what is that large stainless braided line going to the front of the head for, extra cooling perhaps for between runs?

Terry

Thanks Terry. The lines are on both sides and is for better cooling as the block is half filled with a concrete type of mix . This strengthens the cylinders and helps reduce harmonic resonance. You will note that the line goes into a raised T-stat housing, this is a system that helps auto bleed any air in the cooling system. 440's are famous for steam pockets in the heads. The engine, nothing radical, Roller rockers mild port job 12:1 pistons. .640 lift roller cam. That engine ran 9.70's