If I was you I'd look for another T-Cat motor, or go to a ZRT800 motor.
The engine bay is already set up for a tripple/tripple, so a ZRT motor should be the easiest swap.
Rick
Let's Take All the Warning Label's Off,
and let Nature Sort it Out !!!
1990 A.C. Prowler 440 Improved
1987 A.C. ElTigre 440 Ice Sled w/a 90 motor
www.johnmaster.net (Snowmobile Traction Product's)
mpsalvage@msn.com ( Snowmobile Salvage and Part's)