CO-244621 - COMP CAMS HYDRAULIC FLAT TAPPET CAM H286 FITS HOLDEN V8 253-304-308
CO-244621
Part Number: CO244621 Grind Number:
Engine Identification: |
|
|
Start Yr. |
End Yr. |
Make |
Cyl |
Description |
1969 |
1987 |
Holden |
8 |
Fair idle, strong mid range-top end street & strip performance. Needs 9.5-10:1 comp, 3.08-3.5 gears, hi-stall converter etc. for best results. |
Engine Size |
Configuration |
|
253-304-308cu. In. |
V |
|
Valve Setting: |
Intake - |
.000 |
Exhaust - |
.000 |
Hot/Cold - |
HOT |
Lift: |
Intake @Cam |
3101 |
@Valve |
496 |
All Lifts are based
on zero lash and theoretical rocker arm ratios. |
|
Exhaust @ Cam |
3101 |
@Valve |
496 |
Rocker Arm Ratio |
1.60 |
|
|
Cam Timing: |
TAPPET |
@ .004 |
Lift: |
|
Opens |
Closes |
ADV Duration |
|
Intake |
35.0 BTDC |
77.0 ABDC |
292.0 |
|
Exhaust |
75.0 BBDC |
37.0 ATDC |
292.0 |
Spring Requirements: |
Part Number |
99848 |
Loads |
Closed |
114 |
LBS @ |
1.700 |
or |
1 45/64 |
|
Open |
324 |
LBS @ |
1.230 |
|
|
Recommended RPM range with matching components |
Minimum RPM |
2500 |
Maximum RPM |
6200 |
Valve Float |
6800 |
Cam Timing: |
TAPPET |
@.050 |
Lift: |
|
Opens |
Closes |
Max Lift |
Duration |
|
Intake |
10.0 BTDC |
40.0 ABDC |
105 |
230.0 |
|
Exhaust |
50.0 BBDC |
0.0 ATDC |
115 |
230.0 |