360 4-speed manual transmission?

74 360 with a 4 speed...only year in a car.
Drill out a good used 318/340 (used the same flywheel) factory zero balanced forged crank unit as per the chassis manual from Mopar and there ya go. I did it works great! Now you have a 360 cast crank flywheel...done as the factory did it, it's just that simple. :)