New Intake Manifold
New Intake Manifold I'm looking at buying a LS3 intake manifold and the guy is selling it with the injectors and fuel rails(factory LS3)....my question is will these injectors/fuel rails work on my 99 z28?? I know the intake manifold will bolt up but not to sure about the injectors and fuel rails??
The manifold is for rectangle heads it won't work on the 99 cars cathedral type heads. The injectors are too big(IMOP) for a stock engine and the connector is different. You would need to use a convertor harness. The rails should fit. The Ls6 or a used Fast 92 would be abetter choice.
Exactly what 1lejohn said. Ls3 manifold has rectangle port heads. Will not fit. LS1/LS6/LS2 intakes are the only stock manifolds that will fit. But an LS6 SEEMS to have a better reputation for power than the LS2 manifold, even with the fact the LS2 has a 90mm throttle body.
