The sealing blocks  went out Mike. Not to worry.
 I am still thinking about those injector blocks.

 How many people are interested in dual injector block for the RX8 and
Siemens
 skinny injectors? It won't take long to make them as
 the NC shop is idle.

 Paul Lamar

Paul,
Put me down for 2 I will not use the Vette injectors but look for the
siemens.  I will also take 2 bellmouths.  Thanks

Joe Berki
Limo EZ

Paul, just a question here, not knowing the process of the fabrication of
the injector blocks. Does the process of boring out the injector pocket
involve a single stepped cutter, or are more than one tool used?
If it is a multi tool process, what is the diameter of the smallest "drill"
or the sequence of diameters?
Do you see where I'm going?

Would it be possible to get the blocks profiled, but un bored (if a single
stepped cutter is used), or a set with just the minor bore diameter (equal
to or less than the injector nose of the 2nd gen that I'm committed to)?
Be happy to pay small premium for this. I just feel it would be easier to
finish bore the blocks myself, but that angled fly cutting operation isn't
something that I can easily set up. Using the blocks simplifies intake
fabrication, even if I have to finish the boring.
C. Smith

Multi-step process. Kinsler has some custom drill tools but they are not set up yet
for the skinny RX8 injectors. The smallest drill is 3/8 and that is used as a pilot
after the blocks are welded to the tubes to drill the holes through the wall
of the tubing.

I think I see where you are going with this.
With the new injectors the block can be only .75 inches or 19 mm thick.
Made from 2 X 3/4 bar stock with no outside machine operations other than
the 30 degree fly cutter part cutting the cost.
With the old fat injectors the block would have to be 1.1 inches or 28 mm thick.
That means we will have to use bar stock 1.25 by 2.25 if we can find it or
more likely 1.5 by 2.5 That increases the cost and requires at lease one
another machining step. The spacing would have to be at least an inch.
That causes a slight problem with the connectors meaning some grinding
will be necessary on the fuel rail. The blocks come out much larger
and stick up further. These fat injectors are going to disappear
as the skinny ones are faster with a wider dynamic range.

If we don't drill any holes for the injectors future users
(as 13B engines and fat injectors dry up) will have to have all
these over size blocks drilled out for the skinny injectors. I need to
buy 50 to 100 of these blocks to keep the cost down. I don't want
to be stuck with a bunch of over size un drilled blocks :) 100 will
probably last five years.

I think it is much cheaper  and better for me if you bought
the Kinsler injector holders to fit the old fat injectors
instead of using these dual injector holder blocks :)

Make yourself a jig to hold two side by side when welding
them to the tubes. That way a fuel rail can be used.
In fact the fuel rail itself can be used as such a jig.

Paul Lamar