Below are the available bulk discount rates for each individual item when you purchase a certain amount
High Chrome Alloy Steel, 1.812" x 1.562" x .219"
Hard Valve Seats, set of eight
Application: Universal Unleaded Retro fit, Tapered ID
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, QualCast and Martin Wells.
These seats are from Manley. Part Number: VS1812-4
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"
Example: A seat with a listed OD of 1.500" will measure around 1.5045"-1.506" so it will have around .0045"- .006" press fit if installed into a 1.500" counter bore.
If you're looking for a special size seat, use the contact us link to send us a message.