COMP Cams 4-Pattern 241/251 IB 243/253 OB Hydraulic Roller Cam Chevrolet Big Block 396-454 11-616-44
Specifications:
| Basic Operating RPM Range | 2900-7,200 |
| Inboard Intake Duration at .050 Inch Lift | 241 |
| Outboard Intake Duration at .050 Inch Lift | 243 |
| Inboard Exhaust Duration at .050 inch Lift | 251 |
| Outboard Exhaust Duration at .050 inch Lift | 253 |
| Advertised Inboard Intake Duration | 293 |
| Advertised Outboard Intake Duration | 295 |
| Advertised Inboard Exhaust Duration | 305 |
| Advertised Outboard Exhaust Duration | 307 |
| Inboard Intake Valve Lift | 0.677 |
| Outboard Intake Valve Lift | 0.678 |
| Inboard Exhaust Valve Lift | 0.661 |
| Outboard Exhaust Valve Lift | 0.661 |
| Lifters Included | No |
| Valve Springs Required | Yes |
| Assembly Lubricant Included | No |
| Camshaft Gear Attachment | 3-Bolt |
| Camshaft Material | Billet Steel |
| Engine Family | Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) |
| Lifter Type | Hydraulic Roller |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| Title | 4-Pattern 241/251 IB 243/253 OB Hydraulic Roller Cam Chevrolet Big Block 396-454 |
| Amazon ASIN | B00CWZVVGS |
| 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. Exempt for Federally Certified Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exemption Reason | N/A |
| C.A.R.B. E.O. Number | N/A |
| 10602 | 293QIO10 |
| C.A.R.B. Exempt for On-Road Vehicles? | No |
| 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 California Certified Vehicles Manufactured Before 1965? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| Camshaft Series | 4-Pattern |
| Usage | Street/Performance |
| Cam Type | Hydraulic Roller |
| Grind Number | 293QIO10 |
| Description_SHO | 4Pt 241/251 HRlr BBC |
| Description_INV | 4-Pattern 241/251 H-Rlr Cam BBC 396-454 |
| Description_KSW | Chevelle |
| Description_KSW | Camaro |
| Description_KSW | Corvette |
| Description_KSW | Stingray |
| Description_KSW | Silverado |
| Description_KSW | C10 |
| Description_KSW | Firebird |
| Description_KSW | Chevrolet |
| Description_KSW | Big Block |
| Description_KSW | Chevy |
| Description_KSW | BBC |
| Description_KSW | 454 |
| Description_KSW | 427 |
| Description_KSW | 502 |
| Description_KSW | Monte Carlo |
| Description_KSW | S10 |
| Description_KSW | 572 |
| Description_DES | 4-Pattern 241/251 IB 243/253 OB Hydraulic Roller Cam Chevrolet Big Block 396-454 |
| Description_APS | Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts |
| Description_EXT | Great in street strip 454-502c.i. engines with good heads and 9.5:1+ compression |
| Description_EXT | 3000+ stall or manual transmissions. |
| Description_KSW | Nova |
| Description_KSW | Impala |
| Description_KSW | Malibu |
| Description_KSW | Caprice |
| Description_KSW | 396 |
| Description_DEF | Engine Camshaft |