TicTocTach

Hey guys, i have what is believed to be a 1970 W-30 cam. I am unsure if it is real or not. It has some white and orange markings on it that are pretty faded.., other then that the only thing i see is on the end of the camshaft it is stamped W-30 but looks like it was done by someone in its 30 plus years of travels and not by the factory. Can someone tell me how to verify if it is a true W cam?

Thanks!
Jay

joe_padavano

The only sure way to verify is to measure the lobe lift and duration. The factory decidedly did NOT stamp "W-30" on the cams. Also, be aware that there were two "W-30" cams used in 1970, the manual trans 328/328 cam and the automatic trans 285/287 cam.

Run to Rund

iirc, the 402569 cam I bought from Parts had 569 stamped on the back. The 308 deg. that was in #13 has W30 stamped on the back by the factory. Put yours in v blocks and degree it to make sure.

stevengerard

I believe in 1970 the 455 camshaft for 442s and W30s w/AT had white stripes on them, part number 400165

Manual W30 had two green stripes part number 402569 (? seems to be same number for 68/69 as well)

orange stripes was for the 442 manual trans cars, part number 406768

joe_padavano

Joe,

To clarify, you're talking about an original 1966 car, correct? I did not know that the 66 cams were stamped. The 1970 cams were not, however.

Correct, however if the cam is used there's a good chance that the paint stripes are long gone. On the other hands, factory cams used chamfers on the front face for ID. There is a diagram in the CSM.

TicTocTach

(if the pics work) Here is 2 pics of the cam. You can see the W-30 in the one pic. Where the q-tips are, are where the orange marks are. Where the pencil is, is where the white mark is. Does this help any? Thanks again guys!

72xw30

Good evening,

Here are some pictures of a NOS W30 402569 camshaft I have. (Have a few if interested). I hope this helps. Let me know if you need more pictures or information.

Cheers,
Sam

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L69

pm also sent but joesw31 get dibs before me

DeltaPace77

Really wouldn't worry too much about it, as modern computer designed grinds, are more advanced anyway. Call some larger cam company tech lines with your needs, and surely they can set you up with something more tailored to your project. My 455 has a Crane computer design, thats over .550" lift and 240 deg duration @ .050 lift. Don't think that exactly sounds like a factory stock grind, and a stock factory grind was the last thing on my mind, when doing the build.

Cuttykidd

OLDSter Ralph

If you don't find an NOS 402569 cam, Lunati or one of the companies that ground "blueprinted cams" can probably help you. Are you running it in a 4 speed or Automatic ?