86/87 Throttle BOdy common to other 3.8L engines

[terryk]

Is the TR/GN throttle body unique to these engines or are the other NA's TB's the same?

For example the throttle body from a 3.8L FWD...Same or different?

 

[rastaz]

Good question. I believe I had a vin 3 TB once and cosmetically it looked identical. I actually use the IAC adaptor, return springs/bushing, and TPS screws from it on my vin 7 TB. I can tell you that these parts from it are identical for sure. Unfortunately I gave the TB away so I can't compare it anymore. I'll bet Jay Jackson knows...

 

[terryk]

That's what I'm thinking. Both are 58mm I believe (but then I believe a lot of things). Cable attachment might be different though.

Maybe I'll go to the local PnP and grab one.

Terry

 

[rastaz]

Yes the black arm that the cables attached to was completely different. This piece is TR specific for sure.

 

[YGETV8]

Yep... the linkage is different as is the area that the shaft goes through as there are no seals. Otherwise, they sure look the same and do share a lot of parts.

Can they be used on a TR? Sure. Do I recommend it? No... for the same reasons Stevemon stated above.

I researched the possibility of using them as cores and machining them to accept seals, but it wasn't going to be cost effective.

 

[terryk]

I think that says it all. At least I can use one for the adapters for the LS1 mass.

Thanks all!

Terry