9 Fin Valve Covers early?

[Bruce B.]

I recently came across a set of 9 fin valve covers p.n. 3726086 with the Hoover logo.
They do not have the cut for the intake manifold clearence.
What is the history on these?
Thanks in advance.

[Mike M.]

Re: 9 Fin Valve Covers early?

early 56's up to about vin 1600 lacked the cut-outs.mike