Description
Good in jet boat with B impeller with 10:1+ compression, running river drags or bracket racing.
Resources
Installation Instructions
Resources
Installation Instructions
Specifications:
| Advertised Exhaust Duration | 314 |
| Advertised Intake Duration | 308 |
| Amazon ASIN | B000P592HW |
| Assembly Lubricant Included | No |
| Basic Operating RPM Range | 3,500-6,500 |
| 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 | CL11-461-8 |
| Cam Type | Hydraulic Roller |
| Camshaft Gear Attachment | 3-Bolt |
| Camshaft Material | Austempered Ductile Iron |
| Camshaft Series | Xtreme Marine |
| Description_ASM | Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts |
| Description_DEF | Engine Camshaft |
| Description_DES | Xtreme Marine 254/260 Hydraulic Roller Cam for Chevrolet Big Block 396-454 |
| Description_EXT | Good in jet boat with B impeller with 10:1+ compression, running river drags or bracket racing. |
| Description_INV | X-Marine 254/260 Hyd Roller BBC 396-454 |
| Description_KEY | Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572 |
| Description_SHO | XM 254/260 HRlrBBC |
| Description_SHP | None |
| Description_TRA | Warning: Camshaft Optimized for use with a Melanized or Nitrided distributor gear. Not compatible with cast or steel gears without similar surface treatments. Failure to utilize the proper distributor gear will void all warranties and/or return policies |
| Engine Family | Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) |
| Exhaust Duration at .050 inch Lift | 260 |
| Exhaust Valve Lift | 0.575 |
| Grind Number | XM308HR |
| height | 2.6 |
| Intake Duration at .050 Inch Lift | 254 |
| Intake Valve Lift | 0.575 |
| K-Kit Upgrade | K11-461-8 |
| length | 23.3 |
| Lifter Type | Hydraulic Roller |
| Lifters Included | No |
| Lobe Separation | 112 |
| LTL | N |
| SK-Kit Upgrade | SK11-461-8 |
| Title | Xtreme Marine 254/260 Hydraulic Roller Cam for Chevrolet Big Block 396-454 |
| Usage | Marine |
| Valve Springs Required | Yes |
| weight | 10.7 |
| width | 2.9 |
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