Gen 4 oil pump on LM7

[Fernando Escobar]

hey gentlemen
Got a quick question. I’m rebuilding an LM7. My customer is on a budget and we not replacing oil pump. But i was wondering i have a left over oem oil pump from my 6.2 Denali rebuild.
So... is it possible as long as I change the spring to reuse this oil pump on this lm7 build? Or just keep the same oil pump?

We are NOT trying to make a 1K h/p performance monster. We are just trying to make this engine be a little bit more reliable since we’ve already are going to out a slighty bigger V2 cam.

Any feedbak would be appreciated. Im probably going to button up that engine this week.

 

[strutaeng]

Just reuse the 5.3 pump. If the engine had good oil pressure before, there's really no need to replace the pump. You can open it up to inspect and clean.

I reused the pump on my 06 Suburban on the engine rebuild @ 260k. It makes good oil pressure...

 

[Fernando Escobar]

Just reuse the 5.3 pump. If the engine had good oil pressure before, there's really no need to replace the pump. You can open it up to inspect and clean.

I reused the pump on my 06 Suburban on the engine rebuild @ 260k. It makes good oil pressure...

The oil pressure was decent I think when I turned it on. one of the lifters chewed up the camshaft and the rest is history. I will clean that pump up and have ready for the reinstall., thanks