You don't have to machine the heads. Just clean off the old gasket material, which is cake, and reinstall.MazdaNoob123 wrote:why would you have to Machine the heads (seeing as there not warped)
This one guy happens to have far more experience with KLs than most on here--boosted, NA, and with nitrous. ZEs do not drop valves; some do, MOST do not. Those who do are part of a very small minority, and it is most likely caused by driver abuse (constant redlining, revving too high, etc.).MazdaNoob123 wrote: I find id funny that this one guy... now claims that ZE's dont drop vavles. seeing as people have had problems with it...