Originally Posted By fast68plymouth
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Just curious how rigid those rockers are, and whether any additional ratio was "built in" so the net loaded ratio was close to what they are supposed to be. Some brands seem to have this, some don't.

From what I've measured, Hughes doesn't (and I know HS and Crane do/did). The way my .600"-offset Hughes 1.6s are setup, the actual ratio using CHECKING springs, not the actual springs, was 1.58, and the standard-offset 1.5s came in right at 1.50.

One of the things I have on my task list is to check again w/ the 240-closed / 600-open springs installed. So, it would also be interesting to see what their 1.7 (advertised) measured, too.