Mopar 56029274AA starter, 2005-2008 Ram 2500 5.7L manual trans starter. I've seen people using this with small blocks, and on GenIII Hemi swaps with older transmissions. I'm sure it would work with the Big Block TKX swap I'm working on, but I haven't found anyone who's tried it. Looks like a lot more room for header clearance. I tried the mini starter, and I had to stop smashing the hell out of the header before there was nothing left. The starter is moved out about an inch from the block compared to a 727. You can see how much I had to smash the tube, and it still didn't fit. I've got 3/8" clearance using the stock starter.





Here's what it looks like from Mancini Racing's web site. Check out the pics compared to the more commonly used mini starter.
https://www.manciniracing.com/61r274.html