Throttle body ?

**Johns00Z28** · 04-03-2008, 04:35 PM

I have a 2000 Z28 and picked up a ported TB. Since then I found out that they switched to a different one somewhere in mid-2000. I want to make sure I have the right one so my question is, would there be any other way to find out other than taking mine off and comparing it to the ported one? And if it is different, is there a way to make it work or will I just have to get rid of it and get mine ported?

**UTVols98** · 04-04-2008, 01:15 AM

Are you talking about the mm size cause they all were the same from 98-02.

**kev70ss** · 04-04-2008, 10:23 AM

They all should be the same size. Earlier years had a different throttle cam so it opened faster, the correct one for your year should have a blue spring on it.

**Johns00Z28** · 04-07-2008, 09:10 AM

Yeah I'm talking about the throttle cam. I just brought mine down to the car and compared it to the one on there and the one on my car is noticably bigger so I guess I have the wrong one. Damn! I wish I would have known this before I bought it.

**rel3rd** · 04-09-2008, 05:32 PM

I could have sworn I read somewhere that we (2000 model year) could use the 98-99 version, but they just couldn't use one off of ours because the cable would be too short....

Can anyone confirm?

**ApexVIII** · 04-10-2008, 09:03 AM

you can adjust the throttle cable on a 00-02 car to use a 98-99 TB, i am not sure where this adjustment is

a 98-99 car can drill a new hole on the cam lobe to use the 00-02 TB

**stephen02ws6** · 04-10-2008, 10:06 AM

the throttle body i got from summit came with different cams for it. It had the bigger one for the newer and smaller for the older. it came with a spacer to fit on the ls6 intake so i had to use the smaller cam with the spacer.