I pulled both engines apart and this is what I found
Both are standard size, rod journals and bores, the 16 is really clean inside, has no balance gears, but the piston don't look so good, both oil ring gaps are within 1/4" of each other.
The cranks are different, 14 crank fits the 16 block and it will probably work, just looks different.
end crank on the left is the 16, right 14 the way it's suppose to be.
Crank on the bottom is the 16 and you can see someone punched it for some reason all around the end.
Also you can see where the key has been moving around.
This is where the cranks differ the most aside form the PTO
end, crank on the left is 16, right 14.
(-edit had the right and left backwards, fixed now-)
Pic of the proper clutch mounted on the proper size crank PTO
in the 16 block.
As you can see there looks like there is enough meat to drill and tap for bolts.
The bolt holes in the 14 block are almost 1 - 1/4" deep, the 16 blocks bolt holes are just under 1" deep.
I thinking of drilling 3/4" deep then thread them for the bolts.
And I might as well buy a rebuild kit for it to get some gaskets and give it a new piston with rings, plus a new rod, try to make it as good as I can while it's apart so I don't have to do it again.
Edited by DH1, September 30, 2012 - 05:04 PM.