Motor Mount modifications for 340/360 into Early A
Also should mention that an early A steering linkage will bump into the oil pan. Many people just strategically dent the oil pan to clear. For a 340, I think an early 273 oil pan will bolt up and have the correct clearance, but not possible for a 360 since the rear bearing hump is a larger radius so a 273-340 pan won't bolt up. Also, an early A slant steering link won't clear the pan. The V-8 link drops down ~1" more.