Anybody know the inner diameter sizes of the LS and GSR throttle bodies? On obd1 models?? I was gonna buy an ls one and have it maxbored, but was wondering if i should should start with a GSR one, even though it couldnt be more than a couple millimeters bigger anyhow.... ?

 

58mm inner and 60mm outer....search next time

 

How much smalller are the auto throttle bodies?

 

iuno....they should all be the same