<VV> Re: rocker arm ratios

[djtcz at comcast.net]

snipped and bottom posted
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From: "David C. Herrin III" <source at adnc.com>
Subject: <VV> Rocker Arms - Advertisement
The tooling for the unique Corvair rocker arms @ 1.57 ratio no longer exists anywhere.

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My April 1962 Chevy Service news covering the Corvair Spyder says the rocker arm ratio is 1.5
Of course there are many ways to make rockers with a1.5 ratio (the rocker could be 9 inches long, for instance) and none of them really guarantee the rocker tip will bear centrally on the valve stem on every engine.