stock valve springs

Jeff Lee · 11-25-2011, 11:50 PM

You might have a .280" lift measured at the cam lobe with a 1.5 rocker ratio for .42" lift measured at the rocker arm.
It may be packing' the same duration numbers as a .450" lobe lift / 1.5 RR roller cam that measures .675" at the rocker.
That's .170" difference in lobe lift. Picture that in your mind.
And it really is fun on test-n-tune night beating the back-halved, roller camed, dominator equipped big engine with a Stock Eliminator car!

11-25-2011, 11:50 PM	#4
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: stock valve springs You might have a .280" lift measured at the cam lobe with a 1.5 rocker ratio for .42" lift measured at the rocker arm. It may be packing' the same duration numbers as a .450" lobe lift / 1.5 RR roller cam that measures .675" at the rocker. That's .170" difference in lobe lift. Picture that in your mind. And it really is fun on test-n-tune night beating the back-halved, roller camed, dominator equipped big engine with a Stock Eliminator car! __________________ Jeff Lee 7494 D/S '70 AMX