Early on I considered doing a take-off LSA blower on our TBSS. But, the overall conversion just looked like a nickel and dime nightmare when it came to piecing it together - and since the heads were off going to LS3/L92 castings wasn't a huge concern (other than the cost). Ultimately I decided to run what I had in the stock LS2 and minimize the fabricobbling of getting a car blower on a truck. Thus we jammed on a used $3500 D1SC Procharger which will support a great deal more power than the LSA blower.
The kicker here is I added a wastegate.
You mean BOV or bypass valve right?
No, a wastegate - to bleed of excessive pressure from putting a short diameter pulley on the blower. Thus, allowing me to spin the blower up faster and set the total desired pressure. When you can get a 5200+lb truck to do a 1.6 second 60 foot with a 2600 stall converter - it must be working. Plus the Procharger doesn't lay over on the big end like a positive displacement supercharger does - nor does it heat the crap out of the air. In a 3200lb car there is high-9 second potential in this 6.0L combo - the only internal mods being an LS9 cam, and some aftermarket springs and pushrods. No need for fancy rectangle port heads. Drives like stock.
My recommendation is to look for a used Procharger on one of the truck forums (if you are going to use a truck style FEAD), get a China WG, and pulley that b*tch down. I bet with lower compression and less load you can get this to 15+psi on stock cathedral port heads. Plus the Procharger whine is simply to die for.
And you can get everything you need to do an E85 conversion from Pace Performance in one easy kit. It is what we used to convert the TBSS.
