i know previously i have stated that i wanted to do a high hp 7.3 build for my truck, but doin some messin around and such, i remembered a friend of mines step dad was talkin about the 8.3 Cummins. well, i got to thinking, why not do something off the wall??? im now deciding to do a 8.3 Cummins built to the hill twin turbo and totally wild in my 97 F350 RCLB that im pickin up this summer. i know this engine is heavy as HE!! so im shure i will have to upgrade the leaf springs up front as well as upgrade to a Dana 80 front axle. will be upgrading the rear axle as well to a AAM 11.5. only thing im waiting on is him to reply to me with dimensions on the 8.3 engine (length, width, such and such) and about good performance mods and whether or not i can mate a NV5600 6 speed manual out of a 98 to 02 ram hd! if it sounds like it will work or if i can make it work im gonna do it! too many 7.3s and 5.9s out there. GO BIG OR GO HOME!!