Part Number/Work Order Number 31313
Engine Application 273-360 DODGE
Grind Number 310FDP
ADVERTISED CAMSHAFT SPECIFICATIONS:
INTAKE:
Duration: 310º
Lift: .573
Clearance Hot: .022
EXHAUST:
Duration: 318º
Lift: .581
Clearance Hot: .024
The specifications listed above are based on a rocker arm ratio of
1.50 IN
1.50 EX
RECOMMENDED VALVE SPRING INFORMATION:
Part #
Single
Dual
Triple
Approximate spring pressure:
valve closed: LBS.
valve open: LBS.
30.5 BTDC
23.0 ATDC
52.5 ABDC
61.0 BBDC
Timing Events
The information below is for degreeing cam only. Correct only at .050" tappet lift.
INTAKE
Opens: 30.5 BTDC
Closes: 52.5 ABDC
EXHAUST
Opens: 61.0 BBDC
Closes: 23.0 ATDC
LOBE SEPARATION 105º
Duration at .050"
Intake: 263º
Exhaust: 265º
LOBE LIFT
Intake: .382
Exhaust: .387
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: 101º
NOTES:
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.
