Crower Camshaft Specification Card
Part Number/Work Order Number 50233
Engine Application 215-340 BUICK
Grind Number 280HDP
ADVERTISED CAMSHAFT SPECIFICATIONS:
INTAKE: Duration: 280º Lift: 0.488 Clearence Hot: 0
EXHAUST: Duration: 286º Lift: 0.501 Clearence Hot: 0
The specifications listed above are based on a rockerarm ratio of   1.6 IN
  1.6 EX
RECOMMENDED VALVE SPRING INFORMATION:
Part # 68405 Single Dual X Triple
Approximate spring pressure: valve closed: 105/115 LBS.
valve open: 265/275 LBS.
The information below is for degreeing cam only. Correct only at .050" tappet lift.
INTAKE

Opens: 2.0 BTDC
Closes: 38.0 ABDC

EXHAUST

Opens: 49.0 BBDC
Closes: -3.0 BTDC

LOBE SEPERATION

112º

Duration at .050"

Intake: 220
Exhaust: 226

LOBE LIFT

Intake: 0.305
Exhaust: 0.313

If using "Lobe Center" method of degreeing, cam should be installed on an intake centerline of: 108º

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.