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-   -   NOS GM BBC Valve P/Ns (https://www.yenko.net/forum/showthread.php?t=164770)

Kurt S 12-28-2020 04:29 PM

Note the intake says titanium, the exhaust is 'hollow stem, light weight'.

olredalert 12-28-2020 08:25 PM

----Yes,,, and it also says titanium "alloy". Could it be that it's titanium mixed with other metals? Just askin!......Bill S

scuncio 01-03-2021 09:07 PM

Test results:

All valve tips are magnetic.

None of the remaining surface of either intake or exhaust valves is magnetic.

The intake valve is 3.4 oz

The exhaust valve is 4.1 oz

So yes, the intake valves are definitely titanium (with a steel tip)

nova7579 01-04-2021 04:07 AM

I believe the pic of the parts listing is from the GM Performance Parts Catalog from 1984.
Brian


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