i bought a rebuilt 54 235 from a guy. someone had bored it, new pistons, new cam and hyd lifters, new oil pump, water pump, and so on. NO head. i bought a head and had it rebuilt and put the engine together. installed it in a 52 hard top and went to put water in it ran out faster then i could put it in. cracked all the way down the side. my dad came home with a bottle of Bars Leak, he put a blanket in front of the radiator and got the engine real hot, then poured in the BarsLeak. i drove it for over 3 years then sold it to a friend who drove it for another 2 years. I RAN PERFECT AND NEVER LEAKED A DROP.
Jay D.