Bad Boyz Racing

iTrader: (2)

I have a 99 5.3, installing a 04 LS6 out of an Z06. my truck has a return style fuel system but the LS6 doesn't what would i need to do to adapt for the LS6. Does someone make a wiring adapter so i don't have the wiring harness running ove the top of the intake. Any input would be appreciated.

thunder550

iTrader: (70)

I think I remember reading that you need to find a return style fuel rail from a return style Vette, or buy and aftermarket one. Either way, you'll have to modify your existing fuel lines. Not sure about the wiring adapter.

adam1803

iTrader: (65)

you can use the fuel rail from your truck, the crossover tube will just sit a little high and you'll need to fab a couple brackets to bolt it down.