AFAIC, Gary gets full credit for this solution. Nobody has come up with any "prior art."
Hi Tom, thank's for your support also here!
The sole reason for us chasing this issue down comes right back to our door, after doing the first BBC a few months back, MkIV block/MkVI cam, I knew there had to be a resolution for the early SB's, just took some "out-of-the-box" thinking for a while.
When ANYONE comes up here with ANY "unconventional" idea to solve an issue, we pay close attention, trust me on that. Once the "seed" is planted it's just a matter of working out or changing some of the details.
For us now, doing any of these type builds here, it's simple to get it done, I'm thinking of a way to help others in this area where they don't have access to the "right" tools. Like I stated earlier above you don't want to try this by hand, especially on any matching-numbers castings. I'm doing this stuff a very long time and I wouldn't try it that way myself.
I do have an add'l part of the plan where we could help others in the field to get this done, it would still require a decent shop OR at least some decent tools. More likely to have the casting machined during all the regular machining, maybe at their own machine shops doing their work.
Here's my take on this from another perspective, if you do this without the type tooling we put together but are OK with the plate being somewhat "proprietary" for a specific casting, in other words it will ONLY fit that block, then it could be pulled-off. Building these units here we need it to be "universal" so to speak, any drilled plate will fit any drilled casting. Our jig does well on that issue.
Thanks, Gary in N.Y.
P.S. I will have more on this issue at a later time, need more thought on the subject. Just a for instance though, maybe use our "jig" to pre-drill some plates and get these out to the public. In turn they could be used as a template for others (shops) to set up the casting