9. For just a grand, it’s really hard to beat these Summit-branded heads. They feature phosphorous bronze valveguides, ductile iron valve seats, and came fully assembled with 2.02-inch intake and 1.60-inch stainless steel exhaust valves. The heads also had screw-in rocker studs, guideplates, and 7-degree valve locks. To secure them to the block, we used a set of Fel-Pro head gaskets (PN 1003, $36 each) and a set of ARP stainless head bolts (PN 434-3601, $167). If you want to sacrifice a little bling and save a few bucks, you can get the bolts in black oxide for $77.