Can someone point me to some data on rotor housing interchangability for a 13b. Example...13b na, 13 tii s4, s5, etc...can these housing be swapped around?

thanks

 

to the best of my knowledge they can all be swapped, though there may be a difference in exhasut port timing between the n/a and the turbo, and I know that there are some differences for emissions between the older 4 ports, and the newer turbo 4 ports. we don't have the NA versions (6 ports) over hear anymore, so i can't really say much about them

kenn

 

all rotor housings up to '85 will interchange. '86 on moved the O-ring grooves to the side housings so these rotor housings will only work with '86 and later side plates.

 

Sorry that (o rings)was a given i didn't state. at 260+ posts i was assumeing thta hew new the basics but was worried about port timing etc.

kenn