I just got done tearing down a 13b n/a from an 87 rx-7. Bad news number 2 rotor had an apex seal collapse and it chewed up the rotor and housing really bad. I was thinking of just buying a used 13b with turbo and was curious if the irons are interchangeable between the two. I wanted to do a street port never done one and would be nice to have an extra set to use. Any help for a rookie would help

 

End irons, no. The NA is 6 port, the TII is 4 port.

Middle iron, yes. As long as you don't need to pass emissions.

 

Thanks dude I appreciate the help, and no were I am at emissions are not a problem.