Crankshaft

I didn't know there is a difference in the manual verses auto cranks in a 273. Are you sure you just don't knock out the pilot bushing and use the crank in an auto? here is a link for after market cranks for 273 applications.

http://www.campbellenterprises.com/eagle-crankshafts-mopar-318-340-360-stroker-crank.php