We use a Sunnen seat and guide machine, VGS-20. We also use carbide pilots for a very concentric seat. We use the Sunnen VR-7000 valve refacer, which is chuck-less, and always faces valve concentric. We also use a Sunnen DRO setting fixture for setting the cutter bits to put the seat exactly where I want it on the valve.
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Paul Carter
Carter Cryogenics
www.cartercryo.com
520-409-7236
Koerner Racing Engines
You killed it, We build it!
520-294-5758
64 GTO, under re-construction, 412 CID, also under construction.
87 S-10 Pickup, 321,000 miles
99Monte Carlo, 293,000 miles
86 Bronco, 218,000 miles
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