Frankenstein's high performance accessories are performance enhancement and maintenance focused. Need to equalize engine temperature to improve tuning? Look up FED's top selling water cross over kits. Having oil leak issues at the track? Check out FED's breathers to regulate crankcase pressure and reduce risk of oil leaks. FED accessories are practical and value added parts that lead to longer engine life and better engine performance for extreme applications. FED accessories include valve cover seals, valve seals and o-rings to refresh and maintain your cylinder heads. We offer valves, springs, steam port kits, rockers, and valve covers, each from only the top names in racing like ARP®, CHE®, Jesel®, PAC® and parts designed, engineered and manufactured exclusively by Frankenstein Engine Dynamics. Have questions? Looking for high performance race engine parts? Give us a call and if we don't have what you need, there's a 99% chance we know a high performance parts suppliers who does. Explore our FED Diamond Logo Sticker, FED F-Series – Valve Cover Seal, or the FED Billet Intake Manifold Chimney, among others. Cylinder head parts and accessories include steam port kits, water cross over kits, valves, valve seals, high performance spring kits, coil mount brackets, seals, O-rings, fittings, breathers, stud kits, rocker assemblies, trunnion kits, in addition to both billet and cast aluminum valve covers. Intake parts and accessories include billet valley trays, manifold chimneys, throttle bodies, throttle body adapters in addition to many custom fabricated cnc billet aluminum specialty items. Looking for custom high performance parts and accessories machined to your exact specifications? Contact FED for information on our engineering services. Frankenstein's engineering team serves engine builders and race teams from nearly every class of racing. We serve ProMod, Indy Car and every other form of drag racing. In addition to off road enthusiasts running custom rock crawlers, baja racing and utvs. Frankenstein's machining capabilities, meticulous assembly processes and quality controls assure the tightest tolerances and most exact specifications.