I bought these used but never installed them. Thinking of going a different route. Springs and retainers are new.
Comp Xtreme XE-R Ford 4.6L 4V XE270BH-114 #106400
Specs:
intake duration @.50 234
exhaust duration @ .50 232
advertised intake duration 269
' 'exhaust 267
Intake valve lift with factory rocker arms .475
Exhaust .450
Lobe separation 114*
Springs
seat load 90lbs @1.470
open load 252lbs @0.970
coil bind 0.900
rate 324 lbs/in
Steel retainers
$1200 obo + shipping
Comp Xtreme XE-R Ford 4.6L 4V XE270BH-114 #106400
Specs:
intake duration @.50 234
exhaust duration @ .50 232
advertised intake duration 269
' 'exhaust 267
Intake valve lift with factory rocker arms .475
Exhaust .450
Lobe separation 114*
Springs
seat load 90lbs @1.470
open load 252lbs @0.970
coil bind 0.900
rate 324 lbs/in
Steel retainers
$1200 obo + shipping