I have an extra stock exhaust manifold which I drilled for EGT and I'm looking to get it ported/coated. Do I need to change the gaskets after I remove the original one?
I'm thinking the one to engine block and another one to O2 housing but is it really necessary?
Thanks

 

bump

 

I've reused them successfully a few times, however, if you can replace, why not?

 

i reused the stocker for my JIC header and no leakes still 6000 miles later runs great changed it with about 8000 miles

 

gaskets aren't that expensive, why not change it if you can.

on the other hand, if its not broken don't fix it, or change it

 

You can re-use metal gaskets as long as it's not damaged. Jusk make sure the mating surfaces are clean and flat.

 

Thanks!

 

Gaskets are so cheap, for the peace of mind I just use new ones.

Tom

 

I agree, but I've reused mine on my own test mule at least a half dozen times without fail... and I don't bother using a torque wrench on my car.

 

I love it! I used the old gasket and I have a small leak. Think of how much work it was, or how long it took to do the mod. That should give you your answer on weather to replace gaskets or not. I couldent get a torque wrench to all of the exhaust mani bolts.

 

Lol...me too.

I use German torque specs.