High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
Thumpr 227/241 Hydraulic Roller Cam
Application Summary:
| Year |
Make/Model |
| 1968-1974 |
American Motors Ambassador |
| 1968 |
American Motors American |
| 1968-1970 |
American Motors AMX |
| 1978-1979 |
American Motors AMX |
| 1966 |
American Motors Classic |
| 1978-1979 |
American Motors Concord |
| 1972-1976 |
American Motors Gremlin |
| 1970-1977 |
American Motors Hornet |
| 1968-1974 |
American Motors Javelin |
| 1967 |
American Motors Marlin |
| 1971-1978 |
American Motors Matador |
| 1978-1979 |
American Motors Pacer |
| 1969 |
American Motors Rambler |
| 1968 |
American Motors Rebel |
| 1970 |
American Motors Rebel |
| 1966 |
American Motors Rogue |
| 1979 |
American Motors Spirit |
| 1974 |
Bricklin SV-1 |
| 1974 |
International 100 |
| 1974 |
International 200 |
| 1974-1983 |
Jeep Cherokee |
| 1971-1981 |
Jeep CJ5 |
| 1971-1975 |
Jeep CJ6 |
| 1976-1981 |
Jeep CJ7 |
| 1972-1973 |
Jeep Commando |
| 1984-1991 |
Jeep Grand Wagoneer |
| 1971-1973 |
Jeep J-100 |
| 1970-1973 |
Jeep J-2500 |
| 1970-1973 |
Jeep J-2600 |
| 1970-1971 |
Jeep J-3800 |
| 1971-1973 |
Jeep J-4500 |
| 1971-1973 |
Jeep J-4600 |
| 1971-1973 |
Jeep J-4700 |
| 1971-1973 |
Jeep J-4800 |
| 1974-1988 |
Jeep J10 |
| 1974-1988 |
Jeep J20 |
| 1972-1983 |
Jeep Wagoneer |
| Attributes |
| Advertised Exhaust Duration |
303, 303 |
| Advertised Intake Duration |
283, 283 |
| Amazon ASIN |
N/A |
| ASIN |
B00N6LJFJM |
| Assembly Lubricant Included |
No, No |
| Basic Operating RPM Range |
2,000-5,800, 2,000-5,800 |
| C.A.R.B. E.O. Number |
N/A |
| C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? |
Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for On-Road Vehicles? |
No |
| C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? |
Yes, but must be a race/competition only vehicle. |
| C.A.R.B. Exemption Reason |
N/A |
| California Proposition 65 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Cam Type |
Hydraulic Roller, Hydraulic Roller |
| Camshaft Gear Attachment |
1-Bolt, 1-Bolt |
| Camshaft Material |
Billet Steel, Billet Steel |
| Camshaft Series |
Thumpr, Thumpr |
| Country of Origin (Primary) |
US |
| Emission Code |
Not in CA |
| Engine Family |
American Motors 290-401 c.i. 8 Cylinder (1966-1991), American Motors 290-401 c.i. 8 Cylinder (1966-1991) |
| Engine Make/Size |
AMC 290-401 |
| Exh. Duration @ .050 in. (Deg) |
241 |
| Exh. Duration Advertised (Deg) |
303 |
| Exhaust Duration at .050 inch Lift |
241, 241 |
| Exhaust Valve Lift |
0.515, 0.515 |
| Exhaust Valve Lift (in.) |
0.515 |
| Grind Number |
283THR7, 283THR7 |
| Harmonized Tariff Code (Schedule B) |
8409914000 |
| Hazardous Material Code |
N |
| Int. Duration @ .050 in. (Deg) |
227 |
| Int. Duration Advertised (Deg) |
283 |
| Intake Duration at .050 Inch Lift |
227, 227 |
| Intake Valve Lift |
0.531, 0.531 |
| Intake Valve Lift (in.) |
0.531 |
| Life Cycle Status Code |
Available to Order |
| Lifter Style |
Hydraulic Roller |
| Lifter Type |
Hydraulic Roller Retrofit, Hydraulic Roller |
| Lifters Included |
No, No |
| Lobe Separation |
107, 107 |
| NAFTA Preference Criterion Code |
B |
| RPM Range |
2000-5800 |
| SDR Required Flag |
N |
| SDS Sheet Number |
N/A |
| Usage |
Street/Performance, Street/Performance |
| Valve Springs Required |
Yes, Yes |
| Warranty Time |
12 |
| GTIN |
00036584266594 |
