Any soft valve seat is likely to be destroyed by the heat of welding.
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Douglas Campbell
November 5, 2008: The fat lady sang. Back to actually working for a living.
1986 Isuzu P'up, 177,673.8 miles. Hella headlights, (highly recommended) DOT C-2 back end. (also recommended) R-12 air conditioner converted to R-406a. 4.1:1 rear axle converted to 3.4:1.
9/22/2007, age 21: Still running well when reluctantly sent away for reincarnation due to rust.
Why do you have to weld them? If you have to just weld black iron pipe with threads so you can screw on your valves?
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01' 7.3 4X4 DRK MTLC BLU, DP Tuner F5, AEM Intake, 4" Turboback Silverline Exhaust, BTS VB, AEM digital gauges(pyro, boost controller, trans temp), CCV mod, Rebuilt Injectors, Fuel tank Mods, 203T, 6.0 Trans Cooler, 185,000K and original tranny, so far so good.
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