Setting
Currency
0 Item(s)

You have no items in your shopping cart.

Zipper’s Stage III CNC Heads for CVO 110 & 120R/ST Engines Double click on above image to view full picture

Zipper’s Stage III CNC Heads for CVO 110 & 120R/ST Engines

Be the first to review this product

As low as: $874.95

Price as configured: $0.00

Overview

Zipper’s has developed these Stage III heads specifically for CVO 110 and 120R/ST engines to increase port velocity and the result is a huge power increase for these thirsty engines! This unique design delivers an awesome experience, with broad power for all types of riding. Installed on a 110 with Red Shift 657 cams, these heads put over 129 HP through the rear tire with a conservative 10.3:1 compression! Other high output applications are also available.

In compliance with ARB emissions laws, this product is not sold or shipped to California.

Price as configured: $0.00

Details

Zipper’s has developed these Stage III heads specifically for CVO 110 and 120R/ST engines to increase port velocity and the result is a huge power increase for these thirsty engines! This unique design delivers an awesome experience, with broad power for all types of riding. Installed on a 110 with Red Shift 657 cams, these heads put over 129 HP through the rear tire with a conservative 10.3:1 compression! Other high output applications are also available.

    • Designed for balanced power applications with excellent peak power
    • Zipper’s developed high-velocity ports
    • Chamber volume 102cc with stock deck
    • Performance valve springs for .660” lift standard* (*Optional springs available for higher lift applications)
    • Requires high-dome pistons
    • Requires larger throttle body and injectors
    • Best quality workmanship and materials used

After 5-axis CNC-porting is complete, we install and size Zipper’s super-concentric ductile-iron Step-Lock valve guides. Valve seats are machined with specially developed proprietary seat angles to accept oversized stainless steel valves treated with severe-duty coatings and flow-enhancing shapes. When full-radius seat and guide machining is complete, the head gasket surface is decked for combustion chamber CC requirements and trued for best possible gasket seal. Lastly, viton valve stem seals are installed and performance valve springs are set up for your camshaft selection.

To unleash the power potential of this head, domed pistons and an oversized throttle body with higher flow injectors are required for any cable or TBW fitments. Contact us if you need assistance in selecting the proper camshaft, pistons and exhaust for your application.

Work is performed on your supplied head cores; shop time is approximately 5-7 business days (allow for additional time during peak season).

International Customers – Import duties are not required when shipping your castings for modification. Special low shipping rates are available for your cores; contact your sales representative for details.

Supply us with your piston volume and camshaft for final cc volume through decking.

Remove heads from engine, wash off oil and ship to Zipper’s as-is. Improper cleaning methods can actually do more harm than good; we suggest you allow us to properly prepare your heads for modification. Extreme care is taken during our preparation process to preserve component finishes. A small cleaning charge applies to heads sent in for modification.

 

DOCUMENTS & DOWNLOADS

Zipper's Job Order Sheet

 

 

This product is not for sale or use on pollution controlled vehicles.

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.

Write Your Own Review

You're reviewing: Zipper’s Stage III CNC Heads for CVO 110 & 120R/ST Engines

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars
Price
Value
Quality

Additional Information

Brand Zipper's
Engine Type Big Twin®, Twin Cam®
Model No
Year Range No
Transmission Type No
Loading...
Loading...