Sounds like no one has first hand experience so I may give them a try. I will report back how they turn out. It will be a week or so before I have the truck back on the road. At least we will no for sure if the parts are good or bad.
Good point about getting quality parts to last a long time. I have been searching the site and have only found one good report about the rings. And nothing about the head gaskets or bolts. It just suck to have already bought the parts and now find out they have quality issues. Looks like I should take the kick in the backside and get good parts. I am rebuilding a 1.6 eco for my 81 truck so the turbo will put that much more stress on the Prothe parts. This is the one post I found that said the Prothe parts were ok OfflinePosts: 611Location: SW South Dakota, USA Verdict on AMC heads please « Reply #14 on: May 11, 2008, 11:39:07 AM » Quote --------------------------------------------------------------------------------I would like to report that I recently installed a set of Prothe's $189 pistons (.020 over) into a freshly bored and meticulously assmbled JK block ('84 mechanical). I spent time being careful with break-in as well and I continue the process. I am still under 1000 miles with it and have not yet gone beyond yield on the bolts.But, my point is that, so far, the pistons and rings are making me very happy. The rings clearly began to seat within 125 miles, there is NO oil consumption and the N/A power is all that it should be.The real evaluation will conclude about 300,000 miles from now....probably on $21 a gallon fuel.....right before the war begins.......BUT I just want to report on a Prothe product.