I’ve come to understand that a big difficulty involves exhaust routing. The tranny might fit, but ya gotta fit the pipes too... I’m tackling body work now and will be replacing floor pans soon, so now would be the time to enlarge the tunnel. Just not sure I want to impose on my space to accommodate pipes. Decisions, huh?
Why the 6L80? Really just spit-balling the idea. More gears = closer ratios. I’m in the research and ask questions phase. I have an L28/5spd that I can put in it. I figured to go through the L28, with a performance cam and install 3 Webers or an ITB injection system. Giving that some thought, it seems that one might swap an LS (and corresponding tranny) for similar money. I like the fab work and the technical challenges. Just developing a plan!