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Posted

the DM head is a bit different.

 

I checked into the RK tek.. problem was that you were limited to their domes.  Not as readily available as the CP stuff.  Same situation as the Trinity or ADA heads.

Posted

CP has a head that uses replaceable domes which noss and probably many others will cut for you. Other than needing acorn nuts and copper washers it works fine. No cooling issues for me.

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Posted

From what ive learned they had 3 styles from trinity. 1 piece, 1 piece with removable domes,and new style that runs dm domes. I have not seen any billet heads besides rktek out there. I have a head that takes old style domes if interested. Comes with domes think it was for a 4mil but cant be positive. Pm if interested.

Posted

i have 2 rk heads.  they work fine.  last i head they are not made anymore but can be special orderd but may take months to get them.  the domes are usually specifically cut for your particular motor. and work well.  when i switched from the builders set up i got the motor from  to the specific rk dome style bike picked up a lot all over the power range.   most of his domes have all the specs and motor setup etched in the sides or on the top of the dome.  you had to do a squish test to get domes and/ or a top edge measurement. 

 

i ended up later pushing the head up around the washers and had to go to a high grade flange nut with sealant to hold it on the motor.  

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