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.
|