are the plastic and metal ones interchangeable? I have a plastic one and i want to change to the metal one.

Thanks!
-Ross

 

No, the mounting holes are different. I shut it could be "made to work" but definately not worth it.

 

aww ****. I needed to install a damn probe in there.

 

mine has three holes, if it makes any difference.

 

Yah, what 13Bpower said. The aluminum ones have 2 holes opposite each other. What you CAN do, however, is swap water pump housings for the one with the aluminum neck Just make sure yo uget one from a T2 because you need to turbo coolant line attachement at the lower hose side. Also make sure it has AC fittings if you have AC or you will have to tap it.

I used an 88 NA housing on my Cosmo

 

Speaking of which...

We're looking to make cast aluminum ones for you Kouki owners, cause these things do break!

You guys are interested?

KSP Engineering out of Japan used to offer these cast aluminum ones for like $200US back in the day...

-Ted

 

I bet there would be a market for them if you make them with a common bung welded in and a plug for it

Not that I need it but it sure would look better than the dumb pipe in the upper rad hose

 

I'm sure the elbow could be built fairly inexpensively. However, I do have a spare elbow, and a spare fitting, so I'm trying it out as we speak. I JB Welded the brass fitting into the plastic elbow. I made sure to spread the epoxy well within the threads, and on the inside of the pipe where the fitting is.

I'll let ya know how it goes and how long it holds up