Building a '93 Caravelle 1750 Classic Bowrider

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
12,320
Here are the OMC Cobra drive gear ratios from my 1988 Factory Shop Manual:
2.3 liter Ford 4 cyl: 2:1
3.0 liter GM 4 cyl: 1.71:1
4.3 liter GM V6: 1.68:1
5.0 liter GM V8: 1.50:1
5.7 liter GM V8: 1.41:1
7.5 liter Ford V8: 1.43:1
Not sure if they changed between 1988-1993 might have to find a later source than what I have
 
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