Lunati recommended their 73121 springs for my new cam. I already have some PAC 1924. All except the rate looks pretty close to me, but admittedly I'm guessing. Any thoughts on whether the PAC springs below would be alright to substitute for the Lunati springs below? Cam specs at the bottom and this is all going in a 494ci (4.30"x4.25"
. Thanks.
Lunati 73121 Dual with Damper
Install Load: 142
Install Height: 1.940"
Open Load: 402
Open Height: 1.250”
Coil Bind: 1.089"
Rate (lbs/in): 377
Lift Max (in): .690
O.D. Outer: 1.540"
I.D. Outer: 1.140"
I.D. Inner: .794"
PAC 1924 Dual with Damper
Install Load (LB): 144
Install Height: 1.900”
Open Load (LB): 403
Open Height (in): 1.300
Coil Bind Max (in): 1.125
Rate: 431
Lift Max (in): 0.650
OD (in): 1.540
ID (in): 1.140
Inside Spring ID (in): 0.754
Voodoo 20110713 Cam
Advertised Duration (Int/Exh): 292/300
Duration @ .050 (Int/Exh): 241/249
Gross Valve Lift (Int/Exh): .625/.625
LSA/ICL: 110/106
Valve Lash (Int/Exh): Hyd/Hyd
RPM Range: 2600-6600