robw
Thrash Merchant
Posts: 362
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Post by robw on Nov 1, 2012 9:24:09 GMT 1
Are billet power valves worth the money, I haven't found anyone who sells one for this model. Are they available ?
Cheers Rob
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Post by Norbo on Nov 1, 2012 9:34:01 GMT 1
There are a set in the forsale section mate with billet bushes as well .
I used to do them but the place that did them stoped doing them,
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Post by midlifecrisisrd on Nov 1, 2012 9:37:54 GMT 1
TSS in Australia made them but not sure if they still do. They have had some probs recently and the Japan Quake wiped out their supplier.
Don't think there is much point any way as the original valve fits the 31k exhaust port quite well. It's the 1UA that different porting and where any benefit is.
Material they are made from is irrelevant other than durability and the standard ones don't wear that bad, mostly the bushes that wear out or the faces at the joints chew from bad maintenance.
Probably best ( more economic ) to use standard valves and check the profile against the ports ( both barrells on and joint fitted ) and file them a bit if they are out.
If barrels are being ported the valve will be re shaped any way.
Steve
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