I have an 1986 or newer chevy 383,one piece main seal, it uses a externally balancer flywheel which is 14.150 outside diameter (this may be measured to include the ringwheel for the starter); but I can I use any chevy truck bellhousing with a 5 1/8 bore hole to fit my sm465? Or is thier a small flywheel to cover my needs. I've been up digging info for the last several days and hoping someone has done the same type project? I can only pay in beer. Bigmoose