Comp 926 valve springs

[gtsdude]

Wondering if anyone has used this spring and if it is a true drop in with stock retainers.
This is the MP cam I have and it recommends stock 340 replacement spring that I am using but I plan on replacing. I know the comp 901 spring is a drop in and will work, just looking for a little more spring for a little more rpm. I am running 273 adjustable rockers also.

Advertised Duration 288/288
@0.050" 245/245-
centerline 108
Lift 497/.497
recommended springs P4120249

In my search I came across them as replacement with these specs for the 926 comp spring

130lbs at 1.70 installed height
317lbs at 1.15 valve open

The stock replacement MP springs I have are

90lbs at 1.68 installed height
230lbs at 1.27 valve open

The comp 901 specs

101lbs at 1.65 installed height
242lbs at 1.25 valve open

 

[perfacar]

the comp retainers with 926 spring does give you more installed height. with .497 lift, shorter heights might coil bind. comp 926 shows, 1.750 = 130#, 1.200 = 359 # coil bind is 1.140. comp shows , 500 lift as max for this spring. the 942 spring is a better fit. 1.700 =115 #, 1.200 = 284 #. spring rate is 339 #,

 

[gtsdude]

Thanks for the heads up. That maybe the way to go.