A few years ago I had a 383 with MTI 2R heads on it and an exhaust valve seat failed (on only one cylinder). They weren't 10 months old. It took out the top of that piston and cracked the sleeve. They have been sitting on a shelf ever since. Y'all think they are worth repairing? or are they coffee table material? LOL

Oh and if repairable, where would I send these for repairs?

 

unfortunately MTI is no longer around. I would check to see if TEA probably would be able to fix it.

 

Try Robert @ LME. He used to be one of the cylinder head guys at MTI.