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Norton 850 Twin 4v


Prices And Specifications Effective December 2017, And Are Subject To Change Without Notice.


When a core is required for an item, the core charge will automatically be added to your cart when you add the item. You must return your re-workable OEM core within 180 days of purchase in order to receive a core refund. If we do not offer a core for your application, you need to call us first, and send your core in to be reground / hardwelded.

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You do NOT need a PayPal account to shop with us, you can use your credit card.
You may also call us to order any of the listed items.

All in stock orders placed on-line Monday - Friday before 3:00pm Pacific, will ship the same day.

Please be sure to read our Ordering Policies.

Camshaft Profiles:

VALVE
LIFT

DURATION

DURATION
@ 0.050"

GRIND
NUMBER


.388/.388


290°/290°


250°/250°

312


Bolt in performance cam for street / touring.


Regrind

N/A

Hardweld

51-001

$427.00

Please Call Us At 951/369-5144 To Order 51-001

New Cam

N/A


.390/.390


310°/310°


270°/270°

312a


Strong mid and upper end performance for hot street. Requires Exhaust System, High Compression Piston, and Performance Valve Spring Kit.


Regrind

N/A

Hardweld

51-011

$427.00

Please Call Us At 951/369-5144 To Order 51-011

New Cam

N/A


.438/.406


310°/310°


272°/270°

86c/312c


High lift cam originally designed for the Combat Commando. Requires Exhaust System, High Compression Piston, and Performance Valve Spring Kit. Check ALL clearances!


Regrind

N/A

Hardweld

51-021

$427.00

Please Call Us At 951/369-5144 To Order 51-021

New Cam

N/A

Other Products:

Valve Spring Kit With Aluminum Retainers

VC-N01

$150.00

Qty:


Kit includes performance dual springs and Aluminum retainers (7075-T6 HA). OK to .500" valve lift.


Valve Spring Kit With Titanium Retainers

VC-N02

$225.00

Qty:


Kit includes performance dual springs , Titanium retainers, and bottom cups. OK to .450" valve lift.