Pushrods?

[dirty white boy]

id rather for the push rod to be the weak link to,..rather bend a rod than put a valve threw a piston,..but with that being said,...valve train harmonics need to be in control,..an that comes from a balanced valve train that works together,...the weight of the rod is as important as the size,maybe more!!an rpm range needs to be in the equation,... smoky yunick created a spintron machine just for studying this science ,good luck...