MA on the back is large welded on it, just like the C on the back of my 428 cj engine. I found some more casting numbers Block came to me disasembled and paper work says it now has a 428 crank and 427 rods that have C6AE-E on them the block has C4AE and 015A below it the cam has SEG3 on it, I also noticed the rear maine has C2AE on it. I am getting ready to take my 428 CJ to the machine shop so I was hopeing to sell this 406 to help finance some of the rebuild.
what a weekend, pipe is all fixed and floor is all patched back, I am looking forward to going back to work to rest.