I did the 3.4 to LT1 swap. Everything is working great. I was told that the V6 fuel pump did not have enough capacity (either in volume or pressure or something else) for the LT1. My question is can I use an inline pump, if so what should I get. I want to avoid having to drop the fuel tank and replace the stock pump.

Thanks,
Faccnator

 

I've got over 20k miles on my LT1 since the swap and the first 10k was running on the V6 pump only. I have heard that they are the same pump. I never had any problems. When I went to a little N20 I added an inline pump. The V6 pump is still in the tank to this day. Before the inline pump was added I was putting down 356rwhp running 12.80s. The inline was really only added for security with the N20.

 

you can replace it with a walbro or something similar, around 150-180 i think, my friend just did it in his lt1, and he didnt have to drop the rear end or nothing, we found a different way to do it, you cut a hole and go through the top, its about 3 hrs of work and a lot easier i can give u the link to the walkthrough if u need it

 

that link would be awesome!!!!

 

Can you post the link on here ????????? Thanks