Thanks Nick, I appreciate your help. I'll take a look.

Oh160 Vs Hh160
#16
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Posted February 19, 2016 - 12:40 AM
- wurzel said thank you
#17
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Posted January 17, 2018 - 11:54 PM
#18
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Posted January 18, 2018 - 10:24 AM
if you dont have any engine numbers one of the sure ways to tell is by the head gaskets , the 14 is different than the 15& 16 hp models
#19
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Posted January 19, 2018 - 07:46 AM
I just got a 1969 sears 12 hydro trac. The motor shroud shows Oh160 how can i tell if its a 16hp or 12hp. How can you tell size. Thanks
Look down on the oil pan, front left corner under flywheel wheel tins right above frame mounting bolt . There will be a number stamped into oil pan casting, that will be the Hp rating of the block.
This is what your tractor should have looked like from factory, flat head
This is a OH160, has rocker box and valves up above the head
Edited by TAHOE, January 19, 2018 - 07:47 AM.
- Bolens 1000 and Corvairguy have said thanks