Use a mercury bellhousing and fabricate a mounting system to the inner transom plate

I have a nasty 512 BBC for my Camaro. It is neutral balanced and has a 427 flex plate on it. That's where you should look for the flywheel.

Maybe call a company like Hayes??

but is it a 1 piece rear main seal ?? they are different

Small block, big block...........doesn't matter. GM is either 153 or 168.

Can't..its a volvo aq style..

It's a two piece, but im sure any reputable company can help the OP out.

Oh c'mon fixx since when do you say "can't"???

This could work for you. Give'm a call.
http://www.prwonlinestore.com/sfi11b...70-90-2-1.aspx

All there other sbc / bbc steel flywheels:
http://www.prwonlinestore.com/chevy_10.aspx

I ordered a 168 tooth neutral balance flywheel for my 496 stroker build (summit billet) and it fits my callies BBC crank perfectly. The 2pc and 1 piece deal is a difference in balance. What the op is looking for can be had in either neutral or external balance.

I was also going to mention PRW. They are sold on eBay, and I recall seeing a 153 version, but it was kinda pricey. Good luck!

lol i wish i can give him some good advise nut in this cast i wont work..bbc in adonzi classic 18..the volvo bellhousing is one piece ane the intermediate housing that holds the bearings and shaft that connects to the outdrive,,if he machines off the bellhousing the intermediate housing would just spin..the intermediate housing is sandwiched in by 2 big ass orings and a tapered plate and 4 bolts..he cant really move the engine forward that much with out moving the bulkhead..