A J-head is held on by 4 1/2" bolts, as many of us know very well. I am planning
to work on my extra J-head, which is at the moment braced up on a rolling
platform. J-heads are devilish awkward things to move, lift, or do anything with
until they're properly mounted. But I have to work on this one, so I'm planning
to mount it on an inexpensive engine stand, procured today for $25. First woops
is it won't mount on the 4 fingers of the engine stand, they don't go that close
together. So I'm going to make another mount plate, my engine stand mount plate
just uses regular 1½" pipe.

I'm wondering if any of you guys know the bolt pattern of these 4 bolts. I stuck
a piece of steel under there and punched it using my transfer punches (there are
those ubiquitous transfer punches again) but the pattern is really crooked and I
figure someone knows the actual designed values. Anyone?

GWE