Part Number/Work Order Number 55229
Engine Application LAND ROVER V8 3.9L
Grind Number HYDRAULIC FLAT TAPPET
ADVERTISED CAMSHAFT SPECIFICATIONS:
INTAKE:
Duration: 258º
Lift: .430
Clearance Hot: .000
EXHAUST:
Duration: 260º
Lift: .446
Clearance Hot: .000
The specifications listed above are based on a rocker arm ratio of
1.60 IN
1.60 EX
RECOMMENDED VALVE SPRING INFORMATION:
Part #
Single
Dual
Triple
Approximate spring pressure:
valve closed: 120# LBS.
valve open: 290# LBS.
-10.0 ATDC
-15.0 BTDC
26.0 ABDC
37.0 BBDC
Timing Events
The information below is for degreeing cam only. Correct only at .050" tappet lift.
INTAKE
Opens: -10.0 ATDC
Closes: 26.0 ABDC
EXHAUST
Opens: 37.0 BBDC
Closes: -15.0 BTDC
LOBE SEPARATION 112º
Duration at .050"
Intake: 196º
Exhaust: 202º
LOBE LIFT
Intake: .269
Exhaust: .279
4 degrees of advance have been ground into this Camshaft.
If using "Lobe Center" method of degreeing, cam should be installed on an intake centerline of: 108º
NOTES:
LONG NOSE PIC "C"
1.115" BASE CIRCLE
Cams damaged by excessive spring pressure, over shimming, valve train bind or retainers contacting the
guides are void from warranty. Refer to the "Important Camshaft and Lift Information" booklet included
with each new Crower camshaft to avoid any break-in problems.
