Ok i have a chance to get a 13b na for 150, but im not sure what 13b I have at my gunfire tips....

It's a 13b na I believe its a 4 port motor it also looks like it was running t2 rotor housings, there two coolant holes on the rotor housing that run through the manifold , like the turbo 2s.

I only know about the 6 port 13b na's and the rx8 motors, but what other motors that are na that are a 13b?

I'm trying to find out what other 13b na motors are out there. Sorry i can't really give more details on this motor.

 

4 port na 13b 74-79(85?)

go ask oldschool section