So my next task is to get the car painted with firewall. I want to drop an ls3 with a T56 in it so I need to make some cuts to the tunnel. I’ve read that all gm engines back to the SBC 350s have the same bellhousing bolt pattern. My main questions are, will an ls3 t56 bellhousing even fit a SBC (actually have the stock 305) and if it does will there be any differences in engine placement weather it’s height or front to back location of motor to that of an ls?? Don’t really want to get the ls3 and have it sit for a long time plus I can use the money for paint. If my 305 block works I would want to use it to mock it all up and if it doesn’t I can get a genIV 4.8/5.3 block for cheap and use that instead, maybe that’s even better as I’m pretty sure all LS based motors are the same as far as the block, right? Thanks for the help in advanced.