I thought the accessories ran on that 6rib portion behind the 8rib portion that is just for the blower?

 

They do you still have to relocate the alt and power steering over, and run a later 07+ truck water pump to clear the actuator

 

They are that way on the stock setup, but this uses the 2 belt instead of 3 belt setup to use the stock power steering pump and alternator locations, but with the 8 rib design for the ZL1 balancer instead of the stock truck balancer.
It's about $400 cheaper than the GM and doesn't seem to have any slippage or wrap issues.

 

You move them over with the brackets, but it uses the stock alternator and power steering pumps themselves with the 07+ water pump. This moves it out to use the 3rd groove on the 8 groove ZL1 pulley.

 

My balancer is just a standard 8 rib truck power bond balancer

 

Little update: Heads have been flowed and assembled. The L92 head flowed pretty good for a stock casting in my opinion. Better than I anticipated for sure.
As of this morning I got the Burban all loaded up with block, crank, pistons, etc and headed over to start the assembly process. Still waiting on my head studs and head gaskets to get here. Got my oil pump other little stuff in. Ready to get the long block assembled!! Long time coming.

I attached the flow numbers from the test. We really didn't have to do it, but we were curious to do a before and after for when I decide to pull them and have them ported along with the blower.

 

In 4 progress.

 

Threads cleaned out, bearings main caps and main studs installed. Cam is done, got oil pump, timing set, and stuff in and ready to go in finally. Getting closer and closer.

 

crank set in and measured for oil clearances. Head studs will be here monday with some nick nacks I'm missing like Head studs, head gaskets, front and rear cover bolts, etc.

 

Since the supercharger makes the throttle body angle out towards the driver side headlight, and my air box is currently on the passenger side, I think I am going to move the battery to the bed and do a makeshift air box there behind the driver headlight. Or just make them swap sides, probably easier. Don't really give a damn about saving weight. Just want less work and stuff to fit right.