If you are not planning on painting the engine, kerosene or diesel fuel will soften the crud without affecting most paint. Stiff brushes of various sizes will help get to the tight spots. A hot pressure washer is another option. That is the easiest way I have found to do it, and no solvents are required.
Carl

Last edited by 52Carl; 10/23/2016 12:08 AM.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission