Need to forget the letters sbc, and learn LS1. If you have any decent fab skills it isn't expensive when you compare it to buying stroker kits, a 1600 dollar cylinder head, bigger injectors, etc. Not to mention all that work to a 6 cylinder and it will maybe make as much power as a stock v8?

It'll probably take more work, but I think in the end you'll be much happier, and have a cooler end product with an aluminum v8 than you would with a 6 cylinder. If you have any doubt go wheel with creighton in his jeep.