I purchased a ITR intake manifold and a throttle body.

and I don't have a measuring tool.
the intake has a P73 stamp at the back.

but the TB was defiantly reattached to the intake, and the grease marks weren't the same(didn't match up)


so HOW can I tell by looking at it, if it's a B16 or B18c5 Tb ??

and is there a cosmetic difference between the 96-97 and 98-01 tb ??

thanks

 

1st generation b16 is 58mm

all other b-series throttle bodies are 60mm with type-r as an exception at 62mm


p73 is itr.

 

if you have or can get a hold of any other bseries tb (gsr, b16, ls), you can hold it up to the type r and you should be able to notice a slight difference in diameter. I think all bseries are 60mm other than the one ek forever speaks of and your itr should be 62mm

 

Or any ruler with mm on it.

 

a c5 tb should be 62mm opposed to the standard 60mm from a b series