Got the Stealth Heads Friday. One head is 80-80.5cc and the other is 82-82.5 (spread is lowest to highest chamber). I am going to have my machine shop take them apart and make sure everything is cool before I cut on them.


Question: there is a lot of meat on each side of the plug in the chamber and the plug hole has a protrusion in the casting that covers the threads, other than the fact that the plug may get a little buildup on the threads, does anyone know of any reason I shouldn't remove the protrusion. Remenber I am looking to add cc's to the chamber to lower CR a bit.

Also, I think I'll have the larger volume head decked to get 80 cc and then work on the chambers of all of them to get 84. Splitting hairs?? Overkill??

To get .040 quench here is the cc I would need to get each CR WITH the pistons I have now (KB 237's)
86=10.1
84=10.3
82=10.5
80=10.7