Several vendors make adjustable tubular crossmembers with side mounts that can either weld or bolt in and mate up to the side mounts on the late model six. 194, 230, and 250 mounts are identical to small block V8's. The 292 has offset mounts, and require a different side mount setup.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!