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Valve Seats, 1.375" X 1.025"-1.085" x .230", Universal, Set of six

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Calculated at checkout

Product Description

High Chrome Alloy Steel, 1.375" X 1.025"-1.085" X .219"

Hard Valve Seats, set of six

Application: Universal, Select Toyota and Mazda




  • Six seats included for the listed price


Alex's Parts carries a decent valve seat selection. If you're looking for a size we do not carry, please use the contact us link to make an inquiry. We might be able to supply them.

We carry seats from: Manley, Martin Wells, SBI and Precision Engine Parts.

High Chrome Alloyed Seats are a good choice for converting older heads to run unleaded fuel.

Chrome alloy seats are easily machined on modern seat and guide machines or ground using stones. (Sioux, Kwik way, etc)

Some seats are available with a tapered ID. Shops who use stones to grind seats, like tapered ID seats because it reduces machining time.

Most of our valve seats are available in increments of 1/16".
Starting at around 1" and going to around 2-1/16" We can get larger seats but don't stock allot of them.

The listed outside diameter of the seat is typically the decimal equivalent of the fractional size of the cutter.

The seat itself normally has the proper press added to it's outside diameter. This is referred to as "Plus Press"

Since this particular seat is intended for aluminum heads, it has around .007" press added to the OD of the seat. 1.375" +.007" = 1.382"




  • Outside Diameter: 1.375" Plus Press
  • Inside Diameter, tapered: 1.025" to 1.085"
  • Depth" .230"
  • Radius or chamfered leading edge for ease of installation
  • For aluminum castings, .007" press fit.




  • High Chrome Alloy Steel
  • Hardness- RC40 combined with easy machinability
  • Features excellent resistance to high temperatures in application to 1150 degree F
  • Can be Machined w/ carbide or ground w/ stones



If you're looking for a special size seat, use the contact us link to send us a message.


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