Lifter Type: Hydraulic Lifter
Engine Family: Buick Nailhead 364, 401, 425 c.i. 8 cyl. 1957-1966
Description: HYDRAULIC - Mutha' Thumpr" - High performance street/strip, head modification recommended to raise RPM limit, 2200+ stall, rough idle.
Cam Family: Thumpr" Hydraulic Flat Tappet Camshafts
Specifications:
- RPM Range: 2200 to 6100
- Valve Timing: 0.006
- Lobe Separation: 107°
- Intake Centerline: 102°
- Valve Lash:Hyd. Intake /Hyd. Exhaust
- Duration:287 Intake /305 Exhaust
- Duration @ .050" Lift: 235 Intake /249 Exhaust
- Valve Lift:0.49 Intake /0.475 Exhaust
- Lobe Lift: 0.327 Intake /0.317 Exhaust
Vehicle Fitments:
| Year |
Make |
Model |
Submodel |
| 1957 - 1958 |
Buick |
Century |
Base |
| 1959 - 1962 |
Buick |
Electra |
225 |
| 1959 - 1966 |
Buick |
Electra |
Base |
| 1966 |
Buick |
Electra |
Custom |
| 1959 - 1964 |
Buick |
Estate Wagon |
Base |
| 1965 - 1966 |
Buick |
Gran Sport |
Base |
| 1959 - 1963 |
Buick |
Invicta |
Base |
| 1959 - 1964 |
Buick |
LeSabre |
Base |
| 1958 |
Buick |
Limited |
Base |
| 1963 - 1966 |
Buick |
Riviera |
Base |
| 1965 - 1966 |
Buick |
Riviera |
Gran Sport |
| 1957 |
Buick |
Roadmaster |
75 |
| 1957 - 1958 |
Buick |
Roadmaster |
Base |
| 1965 - 1966 |
Buick |
Skylark |
Base |
| 1957 - 1958 |
Buick |
Special |
Base |
| 1957 - 1958 |
Buick |
Super |
Base |
| 1962 - 1966 |
Buick |
Wildcat |
Base |
| 1965 - 1966 |
Buick |
Wildcat |
Custom |
| 1965 |
Buick |
Wildcat |
Deluxe |
| 1966 |
Buick |
Wildcat |
Gran Sport |