I'm shopping for a over 450hp 6 speed application for my 1970 442 which has a Rocket 350 in it.
I know I need a BOP housing.

Just curious, but do all the new TR6060's have the same input shaft length??
I know they probably have different bell housings for the Challenger, Corvette/Camaro, ShelbyGT500
http://en.wikipedia.org/wiki/Tremec_...0_transmission

But I got a bead on a wrecked 2009 Challenger and it's got the better gear ratio's and the final .5 ratio I want.
I'm trying to figure out if it will work for me because it's very very cheap.

I'm just trying to figure out if the input shaft lengths vary or how to determine what size I actually need.

Or am I better off looking at the T56 Viper trans for over 450hp??

 

I'm sure they are between different units. I would suggest going with the T56 Magnum for your setup if you want the TR6060 type unit. Other wise, a Viper spec GM LSX unit with a steel adapter plate to bolt up to the BOP factory bellhousing would probably be your best bet.