When using these housings, is it possible to run them with Series 6 plates, or with series 5 plates?

From what I understand, these housings are the pick of the bunch when buying new housings, so if at all possible I'd like to give these a try and see how they last, but does it mean I have to buy a JC cosmo block to use them?

 

so can u use the rotor housings with a 13b or 13bt motor?

 

I don't recommend using the Cosmo housings due to their exhaust port design and the exhaust sleeves they use.

B

 

just pull the sleeves and slap in some t2's...good to go