Looking for help on what small block Transmission with overdrive should I use? What would be the easiest one to use it will be mounted behind a flat head six cylinder. Any help would be appreciated.
And here, I was just there the other day looking up some early hemi casting numbers. I keep forgetting about these guys.Quality Engineered Components has been doing these adapters for years. This page will aid you in deciding which transmission will best work for you: https://www.qualityengineeredcomponents.com/?page_id=222
It also discusses transmission mount placement and 12V starters needed...in case you still have 6 Volts.
Compared to what?Will a 500 or 518 require a change in drive shaft length?
Compared to what?
Both the 500 and the 518 are longer and bulkier in the tail section. So yes the drive shaft needs to be shortened. Any unibody style Mopar will require torsion bar crossmember and floor pan modifications to clear. It’s a fairly complicated swap as far as metal fabrication is concerned.