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i heard 1" height were lower head bolts go....but when you're talking thousandths of an inch
Well, they are pretty well bang on at 1.00"
That being said, the TEXTURE of the head leaves me thinking somebody had a baddddd shift at Chrysler in the early 70's. It looks like the surface was prepped for a head gasket with 40 grit sandpaper!
Sounds like heads were surfaced on a Platen Belt
surfacer. Many shops have platen surfacers for exhaust manifolds,oil pans, water pump housings etc. But many shops have platen surfacers and use them for surfacing heads. A good shop will have a CBN surfacing machine that uses a Cubic Boron Nitride 1/2" or 3/8" surfacing button for cast iron heads and blocks and PCD buttons Polycrystalite Diamond for all aluminum heads and blocks. These machines will give you the RMS surface finish you should have when using todays head gaskets especially with aluminum heads.
logan426
Last edited by Logan426; 06/08/09 11:39 AM.
