I have an lq4 that i built for my mustang a couple of years ago. I'll try to remember the specs on it, I believe it has a 238/242 .580 110 cam, cnc'd perimeter bolt ls1 heads, victor jr. carb intake manifold. Id like to pull it out of the stang and drop it in my 02 silverado rcsb which currently has a flex fuel 5.3. I figure for a little while I could run it with the truck manifold til I can find a decent tbss. Lookin for an overview of what parts i'll need to swap the 6.0 in. How far will the flex fuel injectors and fuel pump take me? Could I get away with a mail order tune? Is a higher stall converter gonna be necessary?

 

Don't know about the injectors, you'll need a tuner to check what the duty cycle is at WOT. Shouldn't be over 80%. With that big cam, you'll definitely need a higher stall converter and a good tune. I doubt a mail order tune will be adequate.

 

Yea I figured it may be a little too radical for a mail order. It ran 114-116ish mph with a 3500 stalled th350 so it makes decent power. Also forgot to mention I put arp rod bolts in.