Class of chally you stated it somewhat okay IMO. Lots of people refer to straight up as lining up the dots. Even though its not absolutly correct.


In requards to 602 he is refering to another method of degreeing the cam. Not .050 from both sides of the intakes lobe max peak, but opening and closing crank degrees at .050 tappet lift.

I feel both ways work just fine. I myself prefer the peak lobe ICL. But I actually will view all 3 numbers. The opening lobe crank* at .050, the peak ICL and the closing crank* at 050 on the intake lobe.


As an example I will use your cam with its 224* duration @ .050 If at its intake lobe peak its at 106* ATDC With a 224* duration that means there is 112* of duration above .050 before and after that 106* Intake centerline point.

So to find the intake opening point at .050 subtract 106* of ATDC away to get you to TDC from 112* That leaves 6* left that will be BTDC Do the same kind of math for the closing at .050 after 106 CL and you get 74* to BDC + 38* ABDC to =112*

So your cam with 224* duration @ .050 installed at a 106 ICL will have the following timing numbers.

INT opens at 6* BTDC @ .050 and closes at 38* ABDC @ .050

So theres the 2 ways to degree a cam. Or you can line up some dots or zeros and say its??? depending on the cam and other stuff. mikre