Quote:
Originally Posted by Tom Kirkham
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I have never seen any "clear" rocker arm covers for FE engines but Ford engineers had, over time, more than one version of see through covers for studying valve train movements and watching out for bad conditions like unwanted harmonics for 221/260/289/non-Boss 302 engines.
A friend had a pair of molded plastic ones he obtained from Ford long ago. They appeared to me to have been vacuum formed polycarbonate plastic to me.