personally I did away with the cooler. Used the LS1 block off which provided a place to drill and tap for my autometer sender. I am just going to run a good syn oil. I would bet alot of others have done away with it as well. I dont see why hard fuel line would work, but it would be eaiser to run hose, I guess FI rubber hose would work, but dont know for sure.

 

The oil cooler lines that are on it are 3/4" or 1" lines with high pressure crimped fittings. I definitely don't want to put small diameter stuff in its place. And it cant hurt to run an oil cooler so why not. I will measure the stuff later after I've slept some.

 

Perfect timing Odin. I was just test fitting the headers on my 8.1 and I was wondering the same thing. WTF do I do with these oil cooler lines? LOL Hury up and figure it out so I don't need to worry about it :flipoff2:

I think I'm going to dig up a factory oil cooler and run it. I don't have a lot of space for a big rad so a little extra cooling won't hurt.

 

the only issue I have with running the factory one is that it has hard lines so I cant plumb them where i need them. When I figure something out I will try and post up in here or in my build thread.

 

I just plugged the holes on my motor. I didn't see the need for an Oil Cooler.

 

Do you remember what you used?


I've measured it and it measures .825in /20.99mm on the major dia. and 14 TPI. I'm not seeing it in any standard or metric thread size charts.

 

The fittings on the block are NPT fittings, so just get some NPT to AN fittings from summit. You should not just plug them per chevy. I talked to a few people at chevy about it and they were not sure if it would block all oil flow or not, but they said at a minimum you needed to connect them together, and recomended running a cooler of some kind.

I used the NPT to AN fittings, and bought cooler with 2 inlets and 2 outlets, one for my trany and one for the oil... No problems so far.

 

yeah I figured out what they were after I posted. I'm a little slow sometimes lol. They are 1/2" NPT.

I figured I would end up running AN fitting and braided hose or something. Im just trying to find a cheaper alternative for now. I talked to a local hydraulic shop about making some lines for me. There concern was how how the engine oil got. They said the hose they have will only handle 180*.