That starter is the same size as the 318/360/3.9 v6 starter and makes no difference. Maybe a tiny amount of clearance. One note of difference, the Ram starter uses a push lock connector for the solenoid while the small block magnum starter is just a stud and nut so no need for a special connector. I have both and bolted both of them up and both of them started my 5.7. I didn't use a t-56 but I did use the NV3500 with a flywheel and clutch for an 05 Ram 2500.
If you need a starter i have a used one that works fine (magnum small block) I'd sell for $45 (core charge basically). PM if interested.
