vortec head max lift

[oldgold]

doe someone know maximum valve lift on 10239906 or 12558060 vortec heads someone told me 480 max or retainer hits top of guide any one know this number? thank you

[Lizardracing]

Last set I had was .460 I think but your answer is something close to that mid to upper .400 range.

[Krooser]

Can't you run a longer valve and spring so you don't get coil bind?

[a25rjr]

Im not sure of the specifics, but we always ran 575 lift on our llm engines.

Call Mike at Wildcat Performance in Adel, Ga if you have any questions.