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<x-charset iso-8859-1> Leon, All I know is the Brazilian heads suck. I've had really good experiences with 043's (Mex). They have the 3/4" plug hole and seem to be cast better. If you keep going through all these heads, that should be telling you that something is wrong somewhere else in the engine. I've built lots of engines. I get stock heads from Don which are $110/ each. If you're getting BOTH for $160, are you sure they're not rebuilt? The problem with rebuilt heads is you don't know how they were run before they were rebuilt. If they were over heated, they'd be weak, especially on #3 cylinder, causing the problems you are describing. You'd think that since I have a heavier car (Thing), with 8.5:1 compression, big valves and CNC porting, my heads would be gone by now, especially since I rev to 6500 rpm, but I've not had a problem. I have 043 heads, and these are the same ones I'm putting on my Notch motor. I've heard nothing but complaints about the MOFOCO heads. On some of the motors I've rebuilt, I've replaced them with Don's 043's and haven't had one come back yet, knock on wood. I'd make sure that where ever the hell you're getting your heads from isn't selling you rebuilt ones as new. After they clean them up and put new valves in, it's really hard to tell the difference. Just thought I'd help you with some info and experience, but something is really wrong if you just keep adding to your "bad head pile", and you need to find out what it is, unless you've got lots of money and time to piss away. Besides, if you're getting your heads from Bear's, you need to find another machine shop. I checked them out when I was looking for a machinist when I started building my Thing motor. I checked about 6 shops, Moonlight, Bear's, Johnson's, Fibretech, Budget, and The Bug Patch. Don at the Bug Patch impressed me the most, and a few of the other shops used HIM for their machine work, so go figure. I'd heard Bear's does passable work, but no where near the quality of The Patch. Moonlight works only when they feel like it, so you MIGHT get your stuff back in a week or two, or three. As far as repairing and welding, no one can say their heads won't crack. but brand new heads are less prone to it than rebuilt. So good luck, let me know if you need anything, P.A. ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/ </x-charset>