Description
K-KIT – Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions.
Resources
Installation Instructions
Resources
Installation Instructions
Specifications:
| Advertised Exhaust Duration | 296 |
| Advertised Intake Duration | 278 |
| Amazon ASIN | B0046ZLFSQ |
| Assembly Lubricant Included | Yes |
| Basic Operating RPM Range | 2,000-5,800 |
| C.A.R.B. E.O. Number | N/A |
| C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| 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 P65Warnings.ca.gov |
| Cam Type | Hydraulic Flat Tappet |
| Camshaft Material | Cast Iron |
| Camshaft Series | Thumpr |
| Description_ASM | Fits 1967+ Oldsmobile 260, 307, 350, 403, 400, 425 and 455 V8 |
| Description_DEF | Engine Camshaft Kit |
| Description_DES | 10 Superlock Steel Retainer Set of 16 for 1.437″-1.500″ OD Valve Spring |
| Description_DES | Engine Valve Spring Kit |
| Description_DES | High Energy Hydraulic Flat Lifters for Oldsmobile 260-455 and Pontiac 265-455 |
| Description_DES | Magnum Double Row Timing Set for ’65-’83 Oldsmobile 260-455 |
| Description_DES | Set of 16 – 10 Degree, 11/32″, Single Groove Locks w/ Lash Cap Recess |
| Description_DES | Set of 16 PTFE Valve Seals for .530″ Guide Size, 11/32″ Valve Stem |
| Description_DES | Thumpr 226/241 Hydraulic Flat Cam for Oldsmobile 260-455 |
| Description_DES | Thumpr 226/241 Hydraulic Flat Cam K-Kit for Oldsmobile 260-455 |
| Description_EXT | High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle. |
| Description_INV | Thumpr 226/241 H-Flat K-Kit Olds 260-455 |
| Description_KEY | 260 |
| Description_KEY | 307 |
| Description_KEY | 350 |
| Description_KEY | 400 |
| Description_KEY | 403 |
| Description_KEY | 425 |
| Description_KEY | 442 |
| Description_KEY | 455 |
| Description_KEY | 88 |
| Description_KEY | 98 |
| Description_KEY | Calais |
| Description_KEY | Ciera |
| Description_KEY | Custom Cruiser |
| Description_KEY | Cutlass |
| Description_KEY | Cutlass Supreme |
| Description_KEY | Delta 88 |
| Description_KEY | Firenza |
| Description_KEY | Olds |
| Description_KEY | Oldsmobile |
| Description_KEY | Rocket |
| Description_KEY | Rocket 88 |
| Description_KEY | Starfire |
| Description_KEY | Vista Cruiser |
| Description_MKT | K-KIT – Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions. |
| Description_SHO | Engine Camshaft Kit |
| Description_SHP | None |
| Engine Family | Oldsmobile 260-455 c.i. 8 Cylinder (1967-1990) |
| Exhaust Duration at .050 inch Lift | 241 |
| Exhaust Valve Lift | 0.476 |
| Gaskets Included | No |
| height | 5.0 |
| Intake Duration at .050 Inch Lift | 226 |
| Intake Valve Lift | 0.491 |
| Kit Type | K-Kit – Complete Kit |
| length | 26.0 |
| Lifter Type | Hydraulic Flat Tappet |
| Lifters Included | Yes |
| Lobe Separation | 107 |
| LTL | N |
| Title | Thumpr 226/241 Hydraulic Flat Cam K-Kit for Oldsmobile 260-455 |
| Usage | Street/Performance |
| Valve Springs Included | Yes |
| weight | 26.25 |
| width | 10.5 |
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