Hello all, i picked up a b16 head the other day, and the guy told me it has itr intake valves and stock exhaust valves. I looked it up, and i guess its known all b series valves are the same physically. So when i picked up the exhaust valves from the guy, i noticed the valve faces are bigger than the b16 ones, and is indeed the same size as the intake valves already in. So my questions are:
1) are the itr valve faces bigger than every other b series valves?
2) are the intake valve faces bigger than the exhaust, or vice versa?
3) what can i use to clean the bottom of the faces, or the whole head?

Thanks!

 

all B exhaust valves are the same and identical.. no face here face there bigger or different

all B intake faces are identical and same.. no face bigger or smaller from one another


ITR valves have tuliped/narrowed stem (behind the face of the valve)
thats about it... you can barely see this in an assembled head though

they do resemble the narrowed stem of supertech valves

 

So intake valves are bigger than exhaust valves? I have a pic, but its kinda hard to see, but the diameters have like a 5-9mm difference.

 

yes, intake valves are larger than exhaust. 33mm 28mm (i think)

 

Hmmm....well that leaves me stuck. Because the valves i have are exhaust, and there the same size as the intake valves, in the head now...

 

then they are probably not the exhaust valves you looking for