Wow, I'm guaranteed to leave some out on this!
3 Husky 65's
1 Ford saw
1 lawnmower Ariens with a briggs
1 brushcutter Stihl FS 105?
1 cement mixer (Robin? 4 stroke)
1 jumping jack compactor (Robin 2 stroke)
1 pressure washer (wisconsin 10Hp)
1 in the Yanmar diesel 5.5kw genset
1 in the army 400w genset
1 OLD Ariens rototiller
4 on the baler (wisconsin V461D)
4 on the land cruiser diesel
6 on the landcruiser gasser
6 in my '94 dodge cummins work truck
6 in the '92 dodge cummins
8 in the '80 Chevy farm truck (454 on propane)
6 in the Ford County Super 6
4 on the Massey 165
4 on the IH 684
4 in the Leyland 154 gasser
4 in the BMC 'mini' (it just barely runs)
2 in the JD model B
3 in the JD 350B crawler loader
4 in the Allis Chalmers HD6 (Buda diesel)
1 Honda XR100
1 Honda XR500
1 KTM 450
1 on the hay elevator
1 JLO leaf blower
82 cylinders on useful running equipment
Extra?
1 running JLO 2 stroke horizontal crank motor with no purpose
6 for a spare running cummins 5.9 12V
4 in a spare land cruiser diesel parts truck
6 in an old van, was running well when parked 20 years ago as a tool shed, it was a fresh engine (Dodge slant 6 225)
Make it 99 if you count the spares!.. didn't quite make 100
Just got rid of an old Fairmont 1 cylinder speeder engine.. the thing was cool, 2 stroke, but useless
Edit: forgot the leaf blower