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installing hardened seats
https://www.slantsix.org/forum/viewtopic.php?t=51801
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Author:  oldnslo [ Mon Apr 22, 2013 3:29 pm ]
Post subject:  installing hardened seats

what thickness should the hardened valve seats be? I bought Engine Builder 1.7 + 1.44 valves. He suggests 1.5 OD x 3/32 thick seats. The guy installing them thinks that seems thin. He usually uses 1/4 thick, but this is his first slant 6. I don't want to run into water jackets. How much metal is there to work with? What have other people used for seat sizes?

Author:  robertob [ Sun May 05, 2013 8:54 pm ]
Post subject: 

Use the thin ones. There is not much meat there. That's what my machinist used. Keep them small diameter too, I can't remember the dimension but it's a little smaller diameter than the exhaust valve is. I think 1 9/16 OD.

Author:  Doc [ Mon May 06, 2013 8:53 am ]
Post subject: 

Harden seats for exhaust valves only.
Use the thin 1 7/16 OD if your machinest has a valve "milling" machine to accuratly locate and install the seats.
DD

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