LML oil pump conversion info....

[juddski88]

For your information, You will need the following to put an lml pump on an earlier motor:

Lml oil pump, pickup, front cover, upper oil pan, windage tray, oil pump drive gear, water pump, and plugs for under oil fill and for sensor hole next to oil pump

 

[juddski88]

You don't wanna do it the hard way and start out with misinformation

 

[skintback]

Thanks for the info about how much did all that cost?

 

[juddski88]

Add lower oil pan to that list.........

 

[whitetrash21]

LML pump move more oil?? Why the conversion??

 

[jraymer]

what is the benefit?

 

[jraymer]

lol you beat me

 

[zeke38]

LML pump move more oil?? Why the conversion??

It flows more oil. Thats a lot of parts to change though.

Sent at 120mph

 

[Evan@InglewoodTrans]

It flows more oil. Thats a lot of parts to change though.

Sent at 120mph

If you really want to have a fun day instead of getting all the parts you can just get the upper oil pan,oil pump,front cover and make the rest work

 

[kivetts04dmax]

how much more we talkin?

 

[juddski88]

11% is what I've been told.

 

[juddski88]

What we ended up doing all day instead of getting it running was: make 3/16" shim for oil drive gear, clearance the tray, clearance the new pickup tube, drill 3 new holes in lower oil pan, make longer bolts to fit thicker cover (only thicker where least convenient), and a few other fun things. Im pretty sure there wasnt one thing we touched that we didnt have to re-engineer again

 

[Stingpuller]

Oil Pump

I guess I just don't see the need. I have never had a problem with the stock oil pump. Looks like a lot of work for nothing to me.

 

[juddski88]

I guess I just don't see then need. I have never had a problem with the stock oil pump. Looks like a lot of work for nothing to me.

All my work would've been avoided had I known that I needed more parts to begin with. Super easy with the right drive gear and tray

 

[TheBac]

So in other words, you need everything that would hang below the bottom rail of the block with the exception of the rear cover.

You have to admit that even though GM changed a lot on the LML, the parts do retrofit to the older motors. Thats not easy to do.

 

[juddski88]

The truck is driving and I am breaking in the motor, no sign of buzzing. One of many things that would probably affect this is oil type and viscosity. I run cenpeco 20 w-50

 

[Leadfoot]

The truck is driving and I am breaking in the motor, no sign of buzzing.

Always a good sign :thumb:

And I know what you mean. Someone tells you all you have to do is X in order to get a little benefit (and you figure why not, every little bit helps), then you find out it's not so easy but yet you are already half way into it and want to finish it on principle. Thanks for the heads up though, you'll same some people a lot of aggravation.

 

[Evan@InglewoodTrans]

It really would of been a simple swap over if we had the parts mentioned above. I wouldnt hesitate to do it the next time my motor needs to be rebuilt. Even though it was time consuming we were able to come up with solutions to all the issues we ran into to get it together properly.

 

[quadracer37]

how much $ did you have involved in all those parts? sounds like a socal hi pres pump wouldve been a lot easier..

 

[LBZ]

Honestly I don't see any advantage to using the LML over an LBZ/LMM/LLY pump unless you are going with dual piston squirters in which case more oil flow would be advantageous and required.
But to each his own. It likely won't hurt anything except maybe your pocket book to do it.
Thanks for the info on parts needed!!