Could use one of these with the 153.
http://www.competitionproducts.com/...350-Flywheel-with-400-Crank/productinfo/4161/
http://www.competitionproducts.com/...350-Flywheel-with-400-Crank/productinfo/4161/
I have a 153 tooth fly wheel and clutch assy. pm me if interestedIf they still don't offer one, I would have one made. I had one made almost 25 years ago when I tried to put a 400 in a 79 Malibu. I would not use a bolt on plate. Have it welded on and it can be balanced to your assembly if you are at that stage.