Produktbeschreibung
komplette Zylinderköpfe für Big Block Motoren
(Keine Garantie! Wir haben schlechte Erfahrungen mit den Köpfen und das kann dann teuer werden. Gerissene Ventile, Kolben ect....)
Complete cylinder heads include Stainless Valves, Valve Springs, Valve Seals, Valve Retainers, and Locks. Heads are assembled and ready to bolt on the engine. Rocker arms & shafts, head bolts, valve covers, spark plugs, etc. are not included with assembled heads.
Clearanced for large diameter valve springs, our Stealth heads use factory type rocker arms and stock diameter shafts, so no special _high-dollar_ offset rockers are required. Any rockers that work on a stock Mopar head will work on our heads. This includes roller rockers, or even stock type stamped steel rockers. Heat crossover is blocked off for increased performance. Factory port windows, exhaust and intake manifold locations make sure you can use any _off the shelf_ intake manifold and/or exhaust manifold/headers without any fitment hassles or special _spacers_ required. Made of lightweight aluminum alloy, one of these heads weighs only 22 pounds bare or 29 pounds complete with valves and springs.
Large, free-flowing intake and exhaust ports look nicer _out of the box_ than most port jobs you'll find done to factory heads. Instead of casting the ports small (like the factory did) and having to port them yourself, we've designed the ports to flow out of the box, better than a _full race_ ported factory head would. Port volumes are about 212CC's on the intake and 72CC's on the exhaust. Intakes flow about 280-290 CFM as cast, with the potential to reach at least 330 CFM or more with porting. Compare that to 215-220 CFM from even the best factory production heads such as 906's or even 915's! Larger 2.14_ and 1.81_ valve sizes also come standard. Combustion chamber is a _closed chamber_ design, with quench area built in, so the benefits of running _tight quench_ can be realized. Chamber size _as cast_ is about 84cc's.
All standard factory mounting locations for alternator, etc are in place.
Super thick 5/8_ deck surface ensures these heads have tons of meat in the deck to withstand high compression, nitrous, or to allow for plenty of milling. Use this feature to reduce the chamber size.. (great for getting high compression ratios AND great flame travel with a flat-top piston.) The straight (100% factory) spark plug location puts an end to hassles with header tubes fitting correctly, AND ensures the spark plug relief cut in domed pistons doesn't require any modification. Exhaust bolt holes are are heli-coiled for extra strength, AND we've made them blind, so you can say goodbye to coolant leaking all over when changing headers or header gaskets.
