im want to know which FI is best for an 06 stock 5.3....i have 13000 to put in the truck need a little help

 

With 13k to blow, no forced induction is good for a 5.3. Invest in a bigger motor there, chief.

 

i was wanting an 408!how much is one of those?n where to get them?

 

You could probably find a turn-key 408 for about 7-8k. Maybe a little more. Still leaves room for a big *** turbo kit too.

Let me add that you'd obviously need other supporting mods in the vehicle, seeing as I have no idea what you already have to work with.

 

its an 06 stock ls silverado...nothing done to it yet

 

Are you looking to run 9s in this thing or just have a fun truck to drive?

 

high 9 or high 10....n a fun truck play around with..n not killin me at the pump

 

a 9 second truck that won't kill you at the pump?? If you figure that out then

 

you're killin me, smalls!!
for one, there's a big difference between high 9s & high 10s in a fullsize truck...

and both are gonna be quite thirsty

 

I believe I saw in another thread that you didn't want to get into the bottom end of the 5.3... You will not run a 9 with a stock bottom end, and it would be damn near impossible to do a 10 with one as well. Figure out exactly what you want to do first. It sounds cool to be able to run a 10, but it takes more than a gas-sipping engine to do it. Few 9 or 10 second trucks are still streetable, let alone get good gas mileage.

Good thing Quik is gone, this thread would be on fire if he read that last bit. haha