'60 tire valve stem diameter

[David Greenburg]

I need to replace my valve stems; the ones installed with my new tires are too short to allow checking/adding air without the use of extensions or removing the wheelcovers.  Valve stems are available for  either .453" diameter or .625" diameter wheel openings.  I know Corvettes used the larger diameter  until 1963; perhaps that is true for Cadillac as well.  Does anyone know?   

[Grant Owen]

The part number I use when ordering the correct Valve Stems here in New Zealand is 425 , not sure if your part numbers would be the same.

[David Greenburg]

Thanks.  The numbers are universal, and 425 is one of the ones I was looking at when I realized that in addition to length, the correct diameter is  an issue.  I don't have the data in front of me, but I believe #425 corresponds to a 2" long .625" diameter stem.

[C.R. Patton II]

Hello David

Important topic for discussion. Which company did you order the valve stems from? Thanks for sharing.

[Grant Owen]

Attached a couple of pictures of the 425 Valve Stems I use.

[David Greenburg]

Chuck:

I haven't gotten them yet, but I'll probably just pick them up locally; once you know the size you want I think they are pretty easy to find.  One of those things where the shipping could exceed the cost of the parts.

Grant:

Thanks for the photos.  The 425's look about right.