srinath
Serious Thumper
Offline
I love YaBB 1G - SP1!
Posts: 5349
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I have cut 3 angle jobs in savage valves before ... and the valves are not coated with anything, valve blanks are made of a hardened steel ... not quite as hard as they need to be ... but they are hard none the less ... they also have been ground once before at the factory... though not to a 3 angle and as they wear, they can lose several 1000'ths off their seat easy.
The valves are not sodium filled ... no way, no how .... cos the broken valve in that savage motor I had will have had to be hollow ... its not. They are through hardened steel ... as in like a hard alloy of steel ...
Good aftermarket valves are made of inconel, an alloy of steel that is very close to chrome vanadium steel. Those are machine ground to precision and swirl polished ... the equivalent of the 60 degree cross hatch on cylinder walls. Its hard all the way thorough and retains it over a long range of temperature ... and is very wear resistant. Suzuki BS is just plain semi hard no name steel alloy.
Sodium filled valves are done so for lightness ... like savage spins fast enough for it to make any real difference.
Take it to a good shop, deck the head, 3 angle cut the valves and seats and fit it back on ... and if they want to charge you more than a 100, or give you too much attitude ... send it to me, I know people who will do an extraordinary job for a 100.
Cool. Srinath.
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