I am looking at having my ported and polished LIM installed in the next little while. I have a set of new style GM gaskets for the LIM (89017816). I just had an APN UIM installed just a few months ago. Not having been there for the install, let alone doing it myself, I am wondering if the UIM gaskets would be reusable or not. As they run about $100 up here, if I can use them with NO risk, I will reuse them. If this is a plain stupid idea, then I will just get new ones.
I appreciate your input!

ive taken my uim off severla times over the last year and havent had a problem with gasket failure/ leaks of any kind. You should be good to go

Assuming it passes visual inspection, a UIM gasket only a few months old should be fine to re-use.

Yup. Unless it was damaged/pinched/mutilated at some point.

yeah you should be ok just be carefull taking the upper off .im doing mine also next week whit tjblackbonne whit some testing before and after

Thanks guys!
I appreciate the input. Will make sure they are inspected first before being reintalled.
Erik

dont use RTV either

What does this have to do with anything? Did he ask that? You're straying again, Buickman. Please read the PM I just sent you.

In this particular case, you're wrong again. There are some conditions where you WOULD use RTV. Aluminum (especially in former DEX and current salty winters) corrodes and pits.

It'* a good idea to apply a skim coat of RTV to these areas if necessary. Especially around the water outlet before the thermostat is reinstalled, but sometimes just the same around the coolant ports in the top of the LIM before placing the UIM gasket.