I like to use the C6 Corvette belt track system for my LS conversion.. It just works the best for fitment on alternator placement & you can buy them from Pace Performance without A/C compressor for 500.00 bucks..
We made this power steering fitting to extend & be able to have a -6 AN male connection.. Works great!
Currently working on A/C brackets to mount a Saden 7 A/C compressor to this drive system..