New guy, old car

[GearRat]

Hello all,

I inherited my grand father's 1935 Ford 5 window coupe recently, and I really want to get her running in time for the Lonestar Roundup in April. I believe the engine that currently resides in there is from 1940, and was rebuilt in the 70's or 80's. The car wasn't driven much after the rebuild but is in really nice shape. I'm having trouble getting the engine turned over by hand. I don't have a socket big enough to fit on the crank, so I was using a large screw driver in the "hand crank slot". I couldn't get the engine to budge. Took the plugs out and poured a little marvel oil in the cylinders and am currently waiting on the 1 7/16" socket to break the engine free. Any other advice on what to do to free the engine, i'm afraid of breaking rings.

Additionally, are there any online service manuals available for this car? I know there are some for my 1952 Packard, just curious.