Another thing is...the drivers side motor mount is different than the other small blocks. I ran into that when I put my 360 in both a 75 Swinger and 80 Cordoba. The B&M flex plate is the way to go. SInce the 360 is externally balanced, gives you a much larger converter selection. Bill M 65 Coronet 500 'vert On Dec 20, 2007 10:44 AM, J. O. <JJO1967@xxxxxxxxxxx> wrote: > > > > Good advice, everybody. Thanks. I should be pretty cautious, and it's good to know those other concerns, too. > I think I'll keep rockin' the 273 for a while! > > Jim Ozolins > >