Harley-davidson twin cam cnc ported heads

#Harley davidson twin cam cnc ported heads upgrade

Packaged with patent-protected cylinder technology, it allows for the largest bolt-on engine upgrade to any Milwaukee Eight motor, and features new CNC-ported heads with 1mm bigger valves and fully machined combustion chambers. With the largest displacement of any Harley-Davidson Stage Kit, this 114CI to 131CI Stave VI Kit was designed to deliver maximum horsepower - all the way to redline. Pricing and availability subject to change without notice. Screamin' Eagle Ventilator Extreme Air Cleaner.Screamin' Eagle High Flow Injectors (5.5g/sec).Screamin' Eagle 4.31' Steel Sleeve Cylinders.Screamin' Eagle High Performance Tappets.Screamin' Eagle High Performance Cam Bearing.Screamin' Eagle CNC Ported Cylinder head with CNC machined chamber.When installed by an authorized Harley Davidson Dealer within 60 days of the vehicle purchase, compliant kit do not impact the vehicles limited warranty. You'll feel the difference as soon as you twist the throttle. Coupled with the Kit's high lift SE*-517 cam, high compression pistons and 64mm throttle body and intake manifold, this combination delivers a thrilling 126 ft-ld of torque and 121 rear wheel horsepower when paired with Screamin' Eagle Street Cannon s designed to run wide open at high-end RPMs and provide a significant boost of torque from cruising speed. Features new CNC-ported heads with 1mm larger valves and fully machined combustion chambers. This product is not for sale or use on pollution controlled vehicles.This Stage IV Kit was designed to deliver maximum horsepower-all the way to redline. ZipperвЂ™s Engine & Powertrain Service Request A small cleaning charge applies to heads sent in for modification. Extreme care is taken during our preparation process to preserve component finishes. Improper cleaning methods can actually do more harm than good we suggest you allow us to properly prepare your heads for modification. Remove heads from engine, wash off oil and ship to ZipperвЂ™s as-is. Supply us with your piston volume and camshaft selection for final cc volume through decking. Special low shipping rates are available for your cores contact your sales representative for details.Д¬lick Here to complete your Job Order Sheet. International Customers вЂ“ Import duties are not required when to shipping your castings for modification. We will supply clean, reconditioned factory castings for your application вЂ“ add part #517-015 to your order. You can also purchase heads outright (without supplying a core set).

Exchange heads may be available if the condition of your cores qualifies. Work is performed on your supplied head cores shop time is approximately 5 business days (allow for additional time during peak season).

Contact us if you need assistance selecting the proper camshaft, piston compression volume and/or exhaust system for your application. These heads are designed for optimum results with the factory throttle body and injectors (lower cost!), maintaining high port velocity for best low and mid-range power. The Stage II CNC SportMax heads provide real results with a great balance of performance and value. 580вЂќ* head gasket surfaces are precision-machined to your deck requirements to ensure proper compression, absolute trueness and surface finish. Valve springs are custom-packed to handle valve lifts up to. Special valve seat machining and blending for a smooth transition to the ports is performed by our highly skilled specialists. Best quality workmanship and materials usedДЄfter cleaning, CNC porting and guide replacement, SportMax heads are fitted with high quality 7mm stainless steel 1.900вЂќ intake / 1.610вЂќ exhaust valves and beehive springs with chrome-moly steel retainers.Custom decked for your specific application.Works great with flat-top pistons, 95вЂі and larger.ZipperвЂ™s-developed high-velocity port shapes.Perfect for riders of heavier machines who want great acceleration just by turning the throttle вЂ“ no rowing of the gearbox and high RPM needed! With ports designed for high-velocity airflow, matching these heads with the proper camshaft and exhaust produces amazing power. Our Stage II CNC heads employ special high velocity ports developed specifically for riders in search of early torque with broad power.

Harley-davidson twin cam cnc ported heads