Speier Racing Heads

​WE SPECIALIZE IN ALL DOMESTIC CYLINDER HEADS,​ NO LIMITATIONS! 
ALL VFactor 23º SBC cylinder heads use a USA ProFiler core special made for SRH Induction (SRH176-X-02)
"We DON'T sell flow numbers!  We sell RESULTS!" - Chad Speier/owner
"Your 23º stuff is the best I've ever had across my flow bench or dyno."- Super Stock engine builder
​"I can't do any better (23º SBC) so why not get them from the guy that has done all the R&D to make them produce power"- Darin Morgan
"The burr/ported manifold made just over 10hp more at 6900 and an average of 7hp more from 6300 to 7600." - Circle track engine builder