Thanks Jim.....I tried to look...with that 351 filling up the whole engine bay. I couldnt see it from the top or bottom. This is why i ask...there is a gap about a half inch between the intake manifold and the heads, when i bought the car it was sealant all the way around.it leaked vacuum but didnt mix coolant..Ive tried to get it sealed but it always leaks... i changed to a edelbrock manifold and and its been mixing coolant ever since..My gut is saying rebuild the engine and ill definatley know whats its made up of cause. instead of trying to figure out the tricks and corner cuts someones did...Heres a image