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COMP Cams 510-1

Positive Stop PTFE Seals Guide Size: .500"

COMP Cams 510-1

Part Number: 249-510-1

Positive Stop PTFE Seals
  • Guide Size: .500''
  • Valve Size: 11/32''
  • 1/pkg
  • $2.69
    Ships 10/24/16
    if Ordered Today
    COMP Cams 510-1 Positive Stop PTFE Seals Guide Size: .500" $2.69

    COMP Cams 510-1 Details

    Positive Stop PTFE Seals

  • 1 Year Limited Warranty

  • Specifications:

    Diameter (in.)
    Machine Work Required
    Sold individually
    Valve Guide Diameter (in.)
    Valve Stem Diameter (in.)
    Valve Stem Seal Material
    Valve Stem Seal Outside Diameter (in.)
    Valve Stem Seal Type
    Positive stop
    Manufacturer's Part Number:

    Comp Cams offers a complete line of valve stem seals, from the stock GM O-ring to the positive stop PTFE seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. O-ring seals use the standard retainer and oil splash shield. Umbrella seals are normally used when a larger-than-stock diameter spring is used; in the case of a double spring, positive stop PTFE seals are used. There is also a smaller diameter Viton seal available for triple spring applications. O-rings and umbrella seals require no machining, but PTFE seals require the heads to be disassembled so the top guides can be machined with a special .530" diameter cutter. Whenever you're planning an overhaul or cam change, don't forget the valve seals!

  • Excellent Sealing Properties
  • O-Ring & Umbrella Seals Require No Machining

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