3863143 BluePrinted Mechanical Flat Tappet Camshaft for Chevrolet 1967-1995 V-8, 396-454
Replacement for factory 375 HP 396 cu.in., 425 HP 427 cu.in., 435 HP 427 cu.in., 460 HP 454 cu.in. camshaft.
| Part Number: |
969961 |
Grind Number: |
3863143 |
| Engine Identification: |
|
|
| Start Yr. |
End Yr. |
Make |
Cyl |
Description |
| 1967 |
1995 |
CHEVROLET |
8 |
Replacement for factory 375 HP 396 cu.in., 425 HP 427 cu.in., 435 HP 427 cu.in., 460 HP 454 cu.in. camshaft. |
| Engine Size |
Configuration |
|
| 396-454 C.I. |
V |
| |
| Valve Setting: |
Intake - |
.024 |
Exhaust - |
.028 |
Hot/Cold - |
HOT | |
| Lift: |
Intake @Cam |
3057 |
@Valve |
520 |
All Lifts are based
on zero lash and theoretical rocker arm ratios. |
| |
Exhaust @ Cam |
3057 |
@Valve |
520 |
| Rocker Arm Ratio |
1.7 |
|
| |
| Cam Timing: |
TAPPET |
@ -- |
| Lift: |
|
Opens |
Closes |
ADV Duration |
| |
Intake |
-- BTDC |
-- ABDC |
-- ° |
| |
Exhaust |
-- BBDC |
-- ATDC |
-- ° | |
| Spring Requirements: |
| Part Number |
99890 |
| Loads |
Closed |
131 |
LBS @ |
1.900 |
or |
1 29/32 |
| |
Open |
322 |
LBS @ |
1.430 |
|
| |
| Recommended RPM range with matching components |
| Minimum RPM |
3000 |
| Maximum RPM |
6400 |
| Valve Float |
7000 | |
| Cam Timing: |
TAPPET |
@.050 |
| Lift: |
|
Opens |
Closes |
Max Lift |
Duration |
| |
Intake |
13 BTDC |
49 ABDC |
108 |
242 |
| |
Exhaust |
61 BBDC |
1 ATDC |
120 |
242 | |
|
| |
