z-28 valve springs
02-22-2004, 05:53 PM
#2
Race Director
Re: z-28 valve springs (hotbrakesracing)
I assume you're talking about the old 'Brown' #142 valve-spring, designed for use with off-road #140 cam.....?
According to the '03 GMPP catalog, the spring is designed to be installed at 1.170" {at 110 pounds}, and solid-stacks at 1.160" {a difference of .540" at coil-bind}.
I seem to remember the #140 cam had approx .485" lift.....?
:confused:
According to the '03 GMPP catalog, the spring is designed to be installed at 1.170" {at 110 pounds}, and solid-stacks at 1.160" {a difference of .540" at coil-bind}.
I seem to remember the #140 cam had approx .485" lift.....?
:confused: