valve springs ?

[Holik95]

I have a question about cam lift and valve spring lift. Max lift on my valve springs is .550" and the cam a want has a .560" lift. Do I have to change my springs? Will it cause any damage if I keep the .550" lift springs on?

 

[mo_dingo]

I have a question about cam lift and valve spring lift. Max lift on my valve springs is .550" and the cam a want has a .560" lift. Do I have to change my springs? Will it cause any damage if I keep the .550" lift springs on?

I am guessing you will start to get some valve float; maybe some premature valve spring wear. Swap the springs, it's a PITA, but I would.
scott

 

[Therian]

some beehives are in order

 

[Zero Signal]

Yeah you don't want the springs to bind. You'll bend pushrods, break rockers, lifters etc.

You don't need behive springs either, just look through a cam mfg. catalogue and you'll find some that work.