Mike,
Edelbrock has gone through a number of detail modifications, all sold as
"F4B". There are some with raised posts that are threaded to accept
throttle linkages on the left side (not on Tiger LAT model), some with
various carb intake geometries, ranging from four holes, two ovals, and
totally open. I have seen all on what I "believe" are original Tiger
LAT. There are various differences in the temperature gauge threads, the
LAT model having straight threads for the Lucas sender, and others using
a tapered pipe thread (US standard).
A little known difference in the LAT version is the left front intake
runner blank boss is fully drilled and threaded for a vacuum source for
the PCV in the right valve cover, as the two barrel spacer originally
doing this is removed. The hi-rise F4B, and the four barrel leave
little room for the hood to close if any plate is used. Some "T" the
servo port, but this is NOT the way Edelbrock provided in the LAT
version. This is easy enough to do to one that is originally an
undrilled boss.
For the temperature sender, I have recommended a tapering, heliarc
filing, and ret-hreading to the Lucas temperature sensor threads on the
pipe thread version. The OD's of the two threads are too close to work
with, and an adapter will raise the sensor higher, and away from the
water flow. BTW: This is not like the original 2 BBL design that puts
the sensor into a separate block leading to the heater loop. Also, there
is a small, bent "L" bracket, on the left side carb nut mounting which
holds the throttle linkage outer guide cover fitting, as the original 2
BBL will not work in it's location.
Hope this helps. All this information is recorded in TigersUnited.com,
including LAT pictures.
Steve
mjsutter@cox.net wrote:
>Listers,
>
>I have a Tiger crossmember available. It is not perfect. The upper a-arm tower
>on the right side has been broken and repaired. The crossmember worked fine on
>my car, with no alignment problems. It has no rust, and all the threads in
>rack mounts and lower fulcrum points are intact.
>
>Question:
>How many generations of F4B manifolds are there. I have one and I am
>interested in identifying if there are any Tiger specific or
>year-of-manufacture specific features that can help me identify it as Tiger
>applicable.
>
>Mike
>
>
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Steve Laifman
Editor
http://www.TigersUnited.com
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