All lines of heads are designed and developed by Speier Racing Heads.  Our main goal during the development process was to design heads that would simply out perform the competition.  Velocity profiling, port shape, and cfm, are keys to making power.  Great care and focus has a set of cylinder heads from Speier Racing Heads a smart and logical choice!

This might simply be the badest standard port head on the Planet!  This cylinder head uses standard rockers but  still has a 2.72 in² pushrod pinch!  The head with a standard pedestal rocker will accommodate a 5/16 pushrod.  A  pedestal rocker with .150 offset will clear 3/8 and larger pushrods.  All Sportsman type rockers will allow 3/8 or    bigger.  This head will flow 337cfm at .800 and 344cfm at 1.000 of lift.