Two aluminum throttle bodies side by side comparing small and la…

Two cast aluminum throttle bodies laid on a cloth over a washing machine, viewed from the inlet end so the bore diameters can be compared side by side. The left unit is smaller with a round bore and a paper parts sticker, while the right unit has a noticeably larger oval bore and extra vacuum ports; both have coolant tubes and cast mounting flanges.

AI caption February 2004 · Photo 14 of 5000