These street high-performance cylinder heads offer out of the box, bolt-on performance with no additional porting required. All Edelbrock Performer & RPM cylinder heads for AMC and Jeep's are assembled with these high-quality components: Stainless steel,one-piece swirl-polished intake and exhaust valves with under-cut stems; 2-ring positive oil control seals; rocker studs; hardened steel guide plates; valve springs, retainers and keepers.
Edelbrock Performer cylinder heads for AMC and Jeep's have provisions for all exhaust emissions related components and are street legal, while the Edelbrock Performer RPM cylinder heads for AMC and Jeep's are for non-emission vehicles. Edelbrock Performer & RPM cylinder heads for AMC and Jeep's are the centerpiece of the Edelbrock Total Power Package.
Please Match Performer heads with Performer intakes and Performer RPM heads with Performer RPM manifolds for an outstanding performance combination. Edelbrock carburetors and camshafts complete the “no guesswork” Power Package.