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1958 Export 383 and 430 specs

Posted: Fri 10. Nov 2017, 12:43
by WerbyFord
Hi there, I read about the "spacers" for the 383 and 430 in 1958, lowering compression from 10.5 to 7.14 or 7.25 respectively.
I am wondering if anybody has the ratings (Torq and HP) for these low-CR "export" engines.

Not that ratings are always accurate, but they might give a feel for how much was lost not just due to the compression drop but loss of the quench step too. :?: