08-26-2012, 05:13 PM
(07-28-2012, 09:38 AM)Sunset Machine Wrote: Is there a spec (or specs) for these? I've seen heads that are ground smooth, and those that shouldn't see the light of day. The most glaring of the latter was at a big-truck dealer. It looked like someone didn't set the inserts properly, but there it was, proudly on display. A $20,000 million-mile engine, the head had a gouge every 1/4 inch. Guys with Bridgeports and face mills seem to think it grabs the gasket better, but that doesn't make any sense. Guys with flycutters seem to think smoother is better. Guys with grinders think a mirror finish is best. Some shops use sanders. Does finish matter?
And the penny has just dropped, Which brand of engine ? and I'm sure I can give you the answer, was it a multi head engine, as in three heads on an in line six?
Regards
Rick
Whatever it is, do it today, Tomorrow may not be an option and regret outlasts fatigue.