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Rowe Valve Seats for Unleaded Fuel

Valve seat by Rowe

Item №
61-425

These valve seats for use with unleaded fuels are made from cast iron alloyed with Tungsten, Chrome, Molybdenum and Vanadium in a tool steel base which creates an extremely strong alloy. This gives Rowe valve seats a great wear resistance and better ability to withstand higher temperatures. They can safely operate in excess of 784° Celsius. A special casting process gives greater resistance to oxidation from fuel contaminates, such as sulphur. Extensive tests have shown that Rowe Tungsten valve seats eliminate largely valve and valve seat »pocketing« and recession.

The Rowe seat has an initial hardness of 42 Rockwell (C-scale) that rises to 50 Rockwell (C-scale) during the first break-in miles. The material hardens during this period through heat and valve impact against the seat. This increased hardness greatly reduces seat distortion and extends the life of both the valve and the valve seat. Rowe seats cut cleanly and easily with the same tooling as used for other seats, and can be fitted using the same methods you are familiar with.

The O.D. on all Rowe valve seats is machined with a generous starting radius which allows a precise machining to the desired size. Recommended press fit: Aluminum heads .005”-.007”; cast iron heads .004”-.005”.

  • fits Evolution
  • intake
  • sintered metal
  • ID x OD: 41.28 x 50.98 mm, 11.10 mm thick
  • USA
  • gross weight: 60 g
Price incl. VAT*
19.93 €
6.83 €
* The price includes 1.09 € German VAT (19% or reduced rate of 7% for Books).
All sales are final!
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