mercruiser gear ratio

[spencer 58]

hi guys new to the forum and mercruiser also.previous volvo owner.purchased a 1992 5.0 alpha 1gen2 and am not sure of gear ratio or how to tell.any advice really appeciated.thank you/jim

 

[kghost]

Most Small V8's use 1.50 : 1 Or 1.47 : 1. ratio's.

On the passenger side of drive (near top of drive) where the decal is, the serial number and ratio are stamped into the casting under the decal.

 

[spencer 58]

thank you for the reply.unfortunately i cant see anything there as too much corrosion.thank you again,i will try the pencil trick though.brand new to me and actually just got it back to my place to start working onit

 

[bondo]

hi guys new to the forum and mercruiser also.previous volvo owner.purchased a 1992 5.0 alpha 1gen2 and am not sure of gear ratio or how to tell.any advice really appeciated.thank you/jim

Ayuh,..... Welcome Aboard,...... If this boat is a runabout, say 23" or less, Jack is correct, it'll be a 1.5:1,.....
If it's a big ole cruiser, it could well be a 1.65:1,.....