how do I tell what cam I have?

[lazy_stang]

Hey guys im getting ready to put my new motor i bought in my car this weekend, and i was wondering how to tell what cam is in it with out pulling the cam out? I bought the block and it has forged flat tops .20 over, and supposed to have a B or an F cam in it, and i would like to know so when i get my heads checked i can get the right valve springs put in.

thanks

 

[Maryland Stang]

Measure the lift at the cam. B cam is .300" and F cam is .320".

 

[lazy_stang]

i thought the b cam has a .480in lift. . . as per specs on summitracing.com
and the f cam has a lift of .512in

 

[Maryland Stang]

That's at the valve with 1.6 rockers. You can't really go by that since a lot of people use different ratio rockers. I have 1.7's on mine for a .510 lift. Just set up a dial indicator down in the lifter valley and measure the lift at the cam.

 

[lazy_stang]

ok thanks guys