74roadrunner440
Well-Known Member
ok guys im trying to figure out if the old pushrods will work in my engine i had a 509 cam and whent with a bigger camshaft its a 564 lift duration at 50 is 251 257 adv dur 295 307 would like to know if they will work i dont have the tool to measure them or i would any help would be great it hyd cam non adjustable