throttle valve cable geometry

65-440 said
was just curious, that's all .... and no the NAG1 is def not the compact choice !

Unfortunately none of the modern transmissions are a "compact choice" when you start comparing them to the early a-body tunnels and the 904/727 tailshaft.

joeboy said
I'm not sure I understand the first part, my TB adapter from fast has the bolt patterns for both the 3 and 4 bolt throttle bodies and is made to run the GM sensors (IAC/TPS) with the Mopar manifold. That's how mine runs, all Mopar connectors and sensors except the TB has the GM stuff... I totally get the headache of steel vs alum throttle cam... I was just saying if there is a larger option than 80mm in a factory LS TB I would use that...

This is my current bracket with my 727 kickdown running to the lower half in a permanent hole...

The first image below explains what I mean about the stock LS1 throttle body and how the IAC ports back into the manifold instead of down back into the throttle body. This is only true for 3 bolt LS throttle bodies so far as I know.

The second image is an adapter for a different application but you can of course see the slot on the adapter behind the throttle body where the IAC's airflow is redirected to go back into the main throttle port. Make any more sense?

The third picture shows the FAST 92mm hemi adapter plate. It does appear to have the bolt pattern for the 3 bolt LS throttle body. Does yours have a slot for the IAC port? If it does, it must be on the other side of it as I realize now it's upside down in the picture.

Like I said already though, I'm leaning towards using the FAST 92mm adapter with an Ebay LS throttle body and just fabbing up my own bracketry. If the FAST adapter plate does allow for a stock style 3 bolt though (IAC slot), I may just look for a ported 3 bolt design and use the BTO kit. It's good to have options.