| Part Number: | 803902 | Grind Number: | H-260-2 (REPLACES HMV-260-2) |
| Engine Identification: | | | | Start Yr. | End Yr. | Make | Cyl | Description | | 1967 | 1984 | OLDSMOBILE | 8 | 39 DEGREE BANK ANGLE (ALSO 1966-400 AND TORONADO 425 C.I.) | | Engine Size | Configuration | | | 260-455 C.I. | V | |
|
| Valve Setting: | Intake | .000 | Exhaust | .000 | HOT |
|
| Lift: | Intake @Cam | 2847 | @Valve | 456 | All Lifts are based
on zero lash and theoretical rocker arm ratios. | | Exhaust @ Cam | 3027 | @Valve | 484 | | Rocker Arm Ratio | 1.6 | | |
|
| CamTiming: | TAPPET | @.004 | | Lift: | | Opens | Closes | ADV Duration | | Intake | 19 BTDC | 61 ABDC | 260 | | Exhaust | 69 BBDC | 23 ATDC | 272 |
|
| Spring Requirements: Triple Dual Outer Inner | | Part Number | 99833 | | Loads | Closed | 95 | LBS@ | 1.703 | or | 1 45/64 | | Open | 260 | LBS@ | 1.240 | | |
| | Recommended RPM range with matching components | | Minimum RPM | 1500 | | Maximum RPM | 4500 | | Valve Float | 6500 |
|
| CamTiming: | TAPPET | @.050 | | Lift: | | Opens | Closes | Max Lift | Duration | | Intake | (5) ATDC | 29 ABDC | 107 | 204 | | Exhaust | 45 BBDC | (9) BTDC | 117 | 216 |
|
| Remarks: |
* A CAM AND LIFTER KIT, INCLUDES INSTALLATION LUBRICANTS AND ROCKER ARM PEDESTAL SHIM KIT. |
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Bell housings
Air & Fuel