I’m thinking about getting rid of the 2006 GTO LS2 I’m running in my 240SX and going with an E-Rod LS3 due to California smog concerns. But the E-Rod doesn’t come with an accessory drive. The E-Rod LS3 is apparently based on the 2011 Camaro. Will 2006 GTO accessories work on the LS3 without having to do something like buy a different crank pulley and/or water pump.

 

The GTO and Gen 4 F body use the "mid" spacing.
The Gen 5 and trucks use the "long" spacing, which is what the E-rod engine uses
I THINK the water pump accomodates 2 different spacings, but can't remember which 2

 

Just take the water pump and crank pulley off your LS2 and use them on the LS3. Then all of the accessories will line up.

 

I got my e-Rod a couple of weeks ago. It looks like the crank pulley and water pump are from a Corvette/CTS-V. This makes sense, given that the e-Rod is a swapping motor, and it should be set up for the tightest possible space. It looks like CTS-V accessories are my best bet.