The Stovebolt Site Forums The Shop Area Driveline Will original floors work with a chevy 305 and a 700r4 trans

I have a 1949 chevy truck. I just recently purchased a frame with a mustang 2 independent from suspension already installed. And it came with a small block chevy 305 and a 700R4 transmission. The floors in my truck cab are rusted out and I was just wondering if I should replace with the original patch panels or make my own floors. Will the shape of the transmission fit with the original floors

No one can answer this, unfortunately. It depends where your engine is mounted in relation to the frame and body. Since it's a custom installation, it may or may not affect your floor. If you're replacing the complete floor it's your preference, I would probably build my own from scratch. In fact, on my truck I had the stock floorpans but ended up covering over them with 18ga sheetmetal because there were so many holes in the original floor on the 46 that it was just easier to do a second layer over the whole thing.

Hotrodders like them set back (moves the weight toward the rear for better traction). That would require cutting the toe-board/firewall.

I'd say it depends on where the engine was originally set up to run. I have the Stang II on my 37 and we put a dummy block in the engine compartment to make sure the distributor missed the firewall. My floor board remained the same but with this set up the engine will sit "LOW" in the compartment..which mine does. That would most likely make cooling it somewhat of an issue unless you run a full electric fan??
(note: I used my original chassis, no clips)

On my AD 52 panel I installed a 305 with a 350 tranny, but I used the straight axle and motor mounts that slide in the original chassis. I think it sets "up" pretty good, no firewall interference, no problem getting the tranny in. Plenty of room.
All this said what happens will most likely be determined by where "they" have it set up for the engine mounts as 46GMCPU has mentioned.
I Plan to put a 700R4 in my panel but it bolts up and is just like the 350 tranny but is about 4" longer.

Let us know how it works out with the stang II. Maybe something I said here will help you in your "planning".

Not true. This is the old gasser drag racing thinking, but now hot rodding is more about making it fit. Most people only cut the firewall if they NEED to move the firewall back in order to make the engine fit.