I;m a NEWBIE at a standstill on my 1950 Plymouth SD. I bought this car for a project. All floor pans need replacement,, body supports, etc...Lots of work needed but thats not a problem with me.... Pulled the old flat 6 out, it was frozen when i bought it.. Dont feel i want to rebuild it because its super heavy, lacks power, and probably only good for 50 or 60 thousand miles. For the same 2 or 3 thousand engine investment i;d rather go with a higher millage motor, say a 3.8l buick v6 or to manys dismay a sbc.. I would appreciate input from u guys who been down this roador who actually KNOW the mechanics involved, such as: If i go with the 3.8l will i have problems with the exhaust manifold hitting the 1950 stock steering unit, what kind of trans will work, what driveshaft do i need, what rear new axle assembly will be good. The same questions apply for a sbc transplant if i choose that course.. Motor mounts, trans mounts, whatever is involved i would appreciate your input. Stan in Pa.