I have a center dump manny on my MH 440
the pipes is very tight,it is a large PITA to get it out,but it will come out with a lot of curse words
you gotta pry it out or remove the head pipe from manny
mine also had a heat sheild on it with a large band clamp it will have to come off before the starter
now would be the time to upgrade to the mini starter...I used one from a 93-Dak 5.2 v-8
you can slide it right inthere and it only weighes 6 lbs or so
not 30 like the orignal one
I got a mini starter from the u-pull for 14$ and had it rebuilt for 65$2 yrs later
got another mini for the sb truck with headers for 14$ at the u-pull,it was a new one from napa and has been flawless for a yr now
newer ones have a plug for the relay wire,but the early ones have a plastic adaptor you remove and hook the stock starter wires to the studs direct
the mini starter will spin the 440 mucho faster also
FYI..I also went to a mini alt on the non a/c brackets,thats a bolt on as well,just need a longer bolt and spacer for it