Looking for a complete performance cast iron head that is ready to bolt on, right out of the box? This is the head for you. This head is now fully CNC ported to flow 225IN/190EX CFM flow @28", blueprinted and assembled with one of our very own dyno developed cams for unparalleled performance. This is a fully-rebuilt cylinder head casting with all new parts. Included along with the cam is our complete "top end kit" featuring Hi-flow oversized stainless steel valves, matched valve springs, chromoly retainers, roller followers, performance HLA's (clearances set up by us), all seals and hardware installed making this head truly a bolt-on and go right out of the box. Choose from cam options below or call us to help recommend at 775-884-3000. PAC racing Beehive valve springs standard. These springs yield 150# pressure on the seat and 350# open and are functional to 7500rpm as well as compatible with most 2 step rev limiters. ***If sending in a core, we recommend you have it checked for cracks locally first. In order for core credit, the core sent must be free of cracks, any damage or anything to make it not readily rebuildable.***