LS swap with manual transmission

[Calvin66c10]

Hello there,

I have a 66 c10 shortbox that I bought a 6.0L lq9 for and have installed a comp cam, ls1 heads and likely going to put a carb kit on it. Has anybody installed an LS engine with a 5 or 6 speed manual? I'm looking to keep my bench seat and that's the main obstacle. Currently I have a 355 ci (375hp) engine with a T5 Camaro (s10 tailstock swap) trans in it. Looking for a trans that I can beat on a little. I'm expecting the finished motor to have 450-500hp. Any suggestions for transmissions would be great thanks.