Like one fellow said you can get a side engine mount conversion for the 350 cu. Chevy V8 but depending on the trans mount which mounts on the tailshaft of the transmission. I made mine out of some 3"x1/2" flat and two pices of 1"x 1/4" flat welded on edge to keep from flexing. I bought a trans rubber mount and fit it to the cross member I made. On my 62 the frame makes a X in the center and I bolted the crossmember to that and to the outside frame rails with 3/8" Grade 8 bolts,washers,lock washers and nuts all being Lock Tighted and torqued to specs.. One thing to remember Chevy engines are set up to be 3 degrees back drop to the rear of the chassie. at the carb. off level.
62Blue
Don

62Blue
62Chevy in progress
You've never been lost until you've been lost at Mach3" Paul F Crichmore (Test Pilot)