MTFCA Forum

Would like to buy a hi lift Stipe cam new or used.

thnx
frontyboy

I believe Kevin Pruis sells them or something very similar

Yes, Kevin Pruis is selling a Model T performance cam.

3 degrees exhaust overlap?

blauvelt wrote: ↑

Wed Oct 29, 2025 9:52 am

3 degrees exhaust overlap?

Nope. Here is the same info in a more readable table format, from the "Model T Cam Project" on the Model T Ford Club of Tulsa webpage.

https://mtfctulsa.com/Cams/design_280.html


Keep crankin',
Eric

There is s slight typo in Kevin's timing tag that makes the timing events a little hard to read and might be somewhat confusing:

The red circled line should probably not be there for the intake timing event:

a minor point, but..............

Needs to remove the line after 54 and change ABCD to ABDC…

And 10 needs to be changed from ATDC TO BTDC…

Adam wrote: ↑

Wed Oct 29, 2025 5:03 pm

Needs to remove the line after 54 and change ABCD to ABDC…

And 10 needs to be changed from ATDC TO BTDC…

While the 10 related to the intake opening looks to be BTDC in the data graphic, you can see in the specs that the intake opening is indeed 10 ATDC, the image is wrong for this cam. But I believe that the blank format graphic for these figures is more commonly used for cams in modern, higher speed engines that do have exhaust overlap with the intake opening BTDC and the exhaust closing ATDC. The figures added to the graphic for this cam do match the .280 lift cam data provided above, even though the graphic doesn't quite fit.

Keep crankin',
Eric

How much? still available?

frontyboy

Allen is correct on the ABDC. Eric is correct on the ATDC valve event. Kevin does have cams available. Best to contact him at the above #.

frontyboy wrote: ↑

Thu Oct 30, 2025 12:24 am

How much? still available?

frontyboy

You can contact Kevin Prus directly from the forum, his user id is racer_22. As of Hershey’s earlier this month, he had plenty.

Eric

https://ebay.us/m/17Myws
Listed on ebay.