Vet79 Ls3

Hi, I am putting a ls3 525hp create motor in my 76 ( not 79 like tag) corvette.

I am restoring it. Si I am replacing the fuel tank and fuel lines. I am getting SS fuel lines. Do i need a return like it have now or just 1. Also what type of fuel pump setup is recommended.

Any ls corvette people comment?

fleming23

If you care to do some reading, I just did this motor and swap in my 71

http://forums.corvetteforum.com/c3-t...-ls3-swap.html

Briou

iTrader: (1)

Id depends on how you want to set it up...you can use a newer corvette fuel filter/fpr and you can mount it shortly after the tank so you have a shorter return line, or you can run an aftermarket fpr and have it mounted in the engine compartment and have a return line coming off of it all the way back to the tank...And I think there may be a way to set up a returnless system, but I don't really know how to set those up...

fleming23

The in-tank pump from an F-body (See Vetteworks page) has the regulator built into the pump so the return is done at the tank, kind of like a C5 regulator. This makes the fuel line running the same as a returnless system where you only need the feed running to the fuel rail.