" From: "Todd Wallis" <cyclone@xxxxxxxxxxxxx> " " I have pulled the 360 out of my 1970 Rebel (standard trans) and plan to put " it in my Javelin (with a 904). " " Obviously the flywheel will bolt right up but am I going to have a engine " balance problem? yup. the flexplate or flywheel must match the engine - 360 for 360, 304 for 304. the only exception is that for the last one or two years [~'70], 360 and 390 had the same unbalance. " Is the only solution to break the engine down entirely and have it all " balanced? nope. just find a 360/tf flexplate. it won't be as good as the factory balance, which matches the original parts closely. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought