- Description
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Details
Race-proven durability!
Our MAP valves feature black oxide nitrating (a superior hardening process) which penetrates into the ultra-EV8 stainless steel core material, forming a super-hard outer layer. This "Black Diamond" finish adds surface hardness as well as a smoother exterior coating which greatly reduces friction. This reduction in friction allows for tighter tolerances (fit) and provides long-lasting durability.
- These valves are vastly superior to factory valves and other so-called "performance" finishes such as hard chrome.
- Our induction welded, heat-treated tip prevents mushrooming and eliminates the need for lash caps.
Oversized Valves Are Available From MAP Cycles, Inc.
- Our oversized valves (OS) are flow tested for maximum performance.
- Oversized valves can also be used to rejuvenate sunken valve seats while correcting valve geometry.
- The OS valve features relocated keeper locations to accommodate hi-lift racing cams and springs. This saves additional machining expense.
NOTE: Always be sure to check piston clearance before installing oversize valves.
FITS:
- 1969 and later Norton Commando models.
Additional Information
SKU MAP9194 Manufacture MAP Cycle - Additional Information
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Additional Information
SKU MAP9194 Manufacture MAP Cycle - Reviews
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Write Your Own Review
- Fitment Information
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Norton Models
- Norton Commando 750R 1969 - 1970
- Norton Commando Fastback 750 1969 - 1973
- Norton Commando Fastback 850 1973
- Norton Commando Fastback LR 750 1971 - 1973
- Norton Commando Hi-Rider 750 1971 - 1975
- Norton Commando Hi-Rider 850 1973 - 1974
- Norton Commando Interstate 750 1972 - 1973
- Norton Commando Interstate 850 1973 - 1974
- Norton Commando Interstate Combat 50 1972
- Norton Commando John Player 850 1973 - 1975
- Norton Commando MK III Hi-Rider 850 1975
- Norton Commando MK III Interstate 850 1975 - 1977
- Norton Commando MK III Roadster 850 1975 - 1977
- Norton Commando Roadster 750 1971 - 1973
- Norton Commando Roadster 850 1973 - 1974
- Norton Commando Roadster Combat 750 1972
- Norton Commando Scrambler 750 1971
- Norton Commando Scrambler 750S 1969 - 1970
- Product Question
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Product Questions
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