Quote:
Originally Posted by bbrocksr
I believe it was K W that made the tool for modifying the combustion chambers on these heads for valve clearance so they could be used on either side.
Bill
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Well Bill, kinda, sorta. It was KR Wilson. The tool you refer to did in fact modify the valve clearance in the cylinder heads. However, it had zero to do with location of the head(s) on an engine.
It (the tool) milled the necessary clearance in
early heads so they could be installed on a later engine.
The center line between the cylinder bore and valves was increased with the 59 series blocks.