tdishon

I have a bone stock crate LS3 and have a Rock Valley Tank that came with a Walbro 5CA-400 pump. I have all the other LS regulator/return etc, but am not sure this is the right pump.
I'm not looking for severe overkill, just the right pump for this engine. Thanks for any input.

joyridin'

iTrader: (1)

I have the 450 pump in my crate LS3. Just be sure to have a good return line and regulator.

tdishon

I have the factory corvette regulator and 6AN lines. Should all be good there. So The 450 is all good. Maybe I should swap out the 400?

tdishon

Correction. I just pulled the pump out and it's a GSS340. I think that will work. Rock Valley said they put 400 as standard, It must have been swapped.