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Howards Cams Ultimate Duty Valve Seals

4.76 out of 5 stars 25 Customer Reviews

Howards Cams Ultimate Duty premium PC-type seals are made of a space-age material that is tolerant to pump gas, alcohol, and nitromethane. Temperature-tolerant to 350 degrees, they are self-lubricating and offer controlled radial tension during changes in operating temperatures. Howards Cams Ultimate Duty valve seals are color-coded and control oil while lubricating the valve guide.

Additional features include:

* Space-age DuPont fluoro-polymer material
* Design allows for very small amount of oil for guide/stem lubrication
* Install with fingers

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