old briggs twin cylinder flathead, this a 16 or 18hp? (pix)
 

I have an old briggs twin that was on a grasshopper ZTR mower I'm
'parting'. but I'm not sure if it's a 16hp or an 18hp? would some kind
soul please take a look at the pictures on these 2 pages:

http://machines.50webs.com/Grasshopper_ZTR/index4.html (it's the bottom
15 images, last three rows)

http://machines.50webs.com/Grasshopper_ZTR/index5.html (it's the
uppermost 5 images on this page)

and tell me what they think it is? alternately, is there something I can
-measure- or 'look at' on the engine that'd tell me 'fer sure' which hp
engine it is?

thanks a real lot,

toolie

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replies by e-mail need to remove the 'weirdstuff' from my address before
clicking 'send' - thanks :-)
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old briggs twin cylinder flathead, this a 16 or 18hp? (pix)
 

ive found the 16 and 18 engines are the same.same bore,same stroke.

http://www.minibite.com/america/malone.htm