Cam Lift on Solid Cams
Dodge Freak,
That '653 .528 solid is a great little cam..you WILL like it. A good choice.
What they are saying about the poor geometry in small Block Mopars is very true. We can't really use the std. formula to find 'true' lift. It won't work with the small Mopars. We lose .010 lift on the rocker end of the pushrod because the lifter and pushrod are not in plane with each other. I use a VERY accurate and simple formula to calculate the 'as installed' lift with Hyd. or solid (mechanical) camshafts. using the .528 solid as an example .. 528 divided by the stock design ratio of 1.5 , gives us a lobe lift of .352 subtracting the .010 lost motion gives us a true lobe lift of .342 at the rocker end of the pushrod. Multiplying this with the rocker ratio you will be using in this case is 1.5 , gives a lift of .513 subtracting the lash of .026 (what I use) gives a true as installed lift with lash of .487 . If you are using a Hyd. grind you will not have lash to introduce into this formula. My XE 275 HL comp gives me .544 at the valve as installed with 1.6 rockers. Hope this helps. Nothing wrong with getting it right. Paying attention to detail is always a good thing. JMHO.
Terry