Don D. is using a 426 marine block in his '63. The marine block itself is cool. There may be issues with excessive internal rust in a marine engine but if you are using it for a core to rebuild you'd have a machine shop clean it up well anyway. If you want to drop a long block marine in there are other issues like the proper rotation (some are right hand, requiring a cam & timing gear change and some crankshaft machining on the rear seal surface) and a re-balance for left rotation engines. Other issues like water pump etc. may exist, I can't recall. Some people report success having a machine shop repair a crack in the block. Depending on the size some say block sealer like Moroso Ceramic seal works well. When in doubt it may be better to put the money & effort toward a non-cracked block. 2c Gary H. Dge645b@ wrote: > > > My 440 has a crack in the side of the block in the water jacket,is there > a > way > to repair this or is it junk. > I have a chance to get a marine 440,can this be used for the street. > > > > ************************************** See what's free at > http://www.aol.com. > > [Non-text portions of this message have been removed] > ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.