72c to a 9 or 10 disc trans
#2
However, for a previous boat, I bought a freshly rebuilt 72C (with no core) from Mike at Harbor Marine in Everett, WA for $1400. I ran it behind a 600 hp BBC for four years without issue, until I sold the boat. I imagine this is the around the power level you are talking about if you are going TRS, so you might give some local guys a try and save some $$.
#3
Registered
I am having a pair of 72c trannies rebuilt and called Huber. He seems to be the man on these units, vast knowledge, nice guy. He has a 10 disc upgrade rated to 1330 ft/lbs. Call Earl at Huber 225-927-6895, I'll let him give you the price, don't want to be his online ad campaign here.