85SS/85GN

iTrader: (3)

hi

i have a 07 gxp and getting parts to do a LS2 intake swap. i know i need the intake and throttle. do i need the fuel rail and injectors? or can i use LS4? what is the flow rate on LS2 injectors? i plan on delete the DOD parts. what other parts will i need?

91parkave

iTrader: (4)

You can use ls4 injectors and rails. Flow rate of ls2 injectors is like 33lb/hr.while ls4 is 28 lb/hr. If you want the dod Hardware removed look down a couple posts there's a part list done by saltybredstick

85SS/85GN

iTrader: (3)

I can use the LS2 injectors right if I want? I plan on doing a cam swap some time too.

lVloses

iTrader: (1)

You can but it's pointless with just a cam swap. Stock injectors handle well over 350whp. You'd only be losing power and economy by going with the LS2s.

91parkave

iTrader: (4)

Bigger injectors with the right data will act just like stock injectors without a hit to power and economy

85SS/85GN

iTrader: (3)

alright do the LS2 injectors use the same plugs as LS4 injectors? or need adapters? also are the LS2/LS3 throttle bodys the same? both are 90mm correct?

fieroguru

iTrader: (1)

You can use the LS4 fuel rail, but you will need some 5/8" spacers for the 4 mounting bolts and longer mounting bolts. McMaster.com sells some aluminum ones for about $10

You can used LS4 injectors, but will need injector spacers. Available from eBay.

You can use LS2 injectors w/o needing any spacers - just need to tune for them.

LS4 and LS2 injectors used the same connector end.

The 90mm throttle bodies come in two styles - silver blade and brass blade and they suposedly open opposite of each other. The one I installed was the silver blade (LS2/LS7 version).