Where can I find street hemi valve springs to use on my 440?

i suppose mancini would have them. a word of caution; they won't take the lift that mopar states. they'll coil bind before 1.30". clipping the dampner will help a little.

I checked Mancini, but they have springs from Mopar, not sure which ones are the "Hemi" springs and then they have springs from comp. Im just looking for any springs that will work with the Mopar 272/272 purpleshaft. Would these be ok? And would they require any extra machining or anything, or go right in?

1.460" Outer W/Dampner
Single Spring
I.D. 1.060"
Seat Load 124 @ 1.800
Open Load 278 @ 1.300
Coil Bind 1.195
Rate(lbs/in) 308
Titanium Retainer 249-730-16
Steel Retainer 249-740,743,744-16
Cup Seat 249-4704-16
Shims 249-4755-16

i'm using some crane 99839-16 springs with my 272-.455 cam. seem to work o.k. with stock retainers. check your installed heigth and retainer to guide clearance.