COMP Cams 42-601-5 Mutha' Thumpr 234/249 Hydraulic Flat Cam for Oldsmobile 260-455
by COMP Cams
SKU ds_BDQQ_42-601-5
Proudly Canadian
Albertan Owned
Supporting Canadian truckers since 2018
Secure Payments
Financing Available
SSL encrypted checkout with financing options
Trusted Brands
Top-Quality Suppliers
Authorized dealer for Fox, Bilstein, BFGoodrich & 50+ brands
Sold out
Original price
$526.45
-
Original price
$526.45
Original price
$526.45
$526.45
$526.45
-
$526.45
Current price
$526.45
Availability:
Out of stock
Description
High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
Resources
Installation InstructionsResources
Installation InstructionsSpecifications
| Advertised Exhaust Duration | 304 |
| Advertised Intake Duration | 286 |
| Amazon ASIN | B005H89WW2 |
| Assembly Lubricant Included | Yes |
| Basic Operating RPM Range | 2,200-6,100 |
| 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 and Lifter Kit Upgrade | CL42-601-5 |
| Cam Type | Hydraulic Flat Tappet |
| Camshaft Gear Attachment | 1-Bolt |
| 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 |
| Description_DES | Mutha' Thumpr 234/249 Hydraulic Flat Cam for Oldsmobile 260-455 |
| Description_EXT | High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle. |
| Description_INV | M-Thumpr 234/249 H-Flat Cam 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_SHO | MT 234/249 HFT Olds |
| Description_SHP | None |
| Engine Family | Oldsmobile 260-455 c.i. 8 Cylinder (1967-1990) |
| Exhaust Duration at .050 inch Lift | 249 |
| Exhaust Valve Lift | 0.486 |
| Grind Number | 287TH7 |
| height | 2.6 |
| Intake Duration at .050 Inch Lift | 234 |
| Intake Valve Lift | 0.5 |
| K-Kit Upgrade | K42-601-5 |
| length | 24.2 |
| Lifter Type | Hydraulic Flat Tappet |
| Lifters Included | No |
| Lobe Separation | 107 |
| LTL | N |
| Title | Mutha' Thumpr 234/249 Hydraulic Flat Cam for Oldsmobile 260-455 |
| Usage | Street/Strip |
| Valve Springs Required | Yes |
| weight | 10.759 |
| width | 2.9 |
