dbryant61

I am rebuilding my 1980 911SC motor and need advice on valves. My machine shop says I need all new valves (Bent 6 exchust valves and intakes have been previously machined so there is not enough margin). He is suggesting using valves by a company called Intervalve. They are way less expensive than TRW valves, but I am not sure if they are sodium filled. This is a concern to me because this is a track car and I do not want to risk over-heating.

Please reply if you have done similar work or if you have any opinion on the various brands of valves available.

Thanks,

Don

Peter Zimmermann

Don: I've not used the valves that you mention, but I've had a hugely expensive problem in the past with valves made by a different manufacturer. I would never even consider anything other than o.e. for such a critical part.
Pete

dbryant61

Thanks Peter.

Steve Weiner-Rennsport Systems

Hi Don:

Intervalves are genuine POS,...

Use the factory TRW ones.

dbryant61

Thanks Steve.