Edelbrock Part # 2086 Performer RPM Top End Kit is designed for 1968-79 Big-Block Chrysler 383 V-8 engines. This Top End Kit produced 421 HP & 417 TQ on a 383 c.i.d engine. The kit delivers improved performance in street applications from 1,500 to 6,500 rpm range. The kit includes RPM Air-Gap intake manifold, Performer RPM cylinder heads, hydraulic cam and lifters, timing chain complete bolt kits and an Edelbrock gasket set. To get great performance out of any engine, all of the components must work together. For over 30 years, the Edelbrock Total Power Package system has solved the parts matching puzzle for many street performance enthusiasts. With the introduction our Power Package Top End Kits, now you can get the best Edelbrock performance in-one-box, under one part number with “no guesswork” involved.