Pushrod selection
Lots of people asking about valve stem height.
Here is a simple test to see how close you are to stock valve stem height.
A paint stick, 1 1/8" wide standing up on edge of the head valve cover gasket surface. Valve tips should be close to this height.
If valve tips are .050 to .075 ths below this, would say you need longer push rods to make up the difference.
Here is another example of a 318 with stock valves, same same:
Others are saying the base circle on your performance cam is smaller than stock . . needing longer pushrods as a result.
Lots of people asking about valve stem height.
Here is a simple test to see how close you are to stock valve stem height.
A paint stick, 1 1/8" wide standing up on edge of the head valve cover gasket surface. Valve tips should be close to this height.
If valve tips are .050 to .075 ths below this, would say you need longer push rods to make up the difference.
Here is another example of a 318 with stock valves, same same:
Others are saying the base circle on your performance cam is smaller than stock . . needing longer pushrods as a result.
