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Pioneer offers a complete line of valve seals, from stock O-rings to positive stop PTFE or Viton® seals. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The O-ring seals use the standard retainer and oil splash shield. The umbrella seals are normally used when a larger-than-stock diameter spring is used. In the case of a double spring, the positive stop PTFE seals are used. For triple-spring applications, use the smaller-diameter Viton® seals.
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$142.99
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$242.99
Howards Cams valve spring seat cutters allow you to modify your heads to fit your valve springs and stem seals. Several diameters are available to suit your needs.
( 2 )
$102.99
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$119.99
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