Recommended in larger c.i. and high compression applications. 3500+ Stall.
The Camshafts feature four different lobe patterns with one intake and exhaust design for outboard runners, and another intake and exhaust design for the inboard runners. While the four inboard cylinders are all the same grinds, the outboard exhaust openings are two degrees earlier, with outboard intake closings coming two degrees later. This is the first ever use of Technology in street vehicles to balance air/fuel ratio per cylinder and can net you a possible 1000+ RPM over other hydraulic Rollers and anywhere from 5-20+ horsepower peak to peak, depending on cylinder head flow. The 4-Pattern hydraulic Roller cams are CNC-Machined from Steel billet cores with cast iron distributor drive Gears. The cams also feature a tight lobe separation for both excellent performance and a throaty sound. 1: Cams for '55-'57 engines can be custom ordered. 2: The '87+ Chevy Small Block received provisions for Roller lifters. Most '87 - '93 GM cars came with Roller lifters, but most '87 - '95 trucks came with flat tappet lifters in Roller lifter style blocks. If your block has '87+ OEM-style Roller Cam provisions but does not have Roller components fitted, COMP Hydraulic Roller Lifter Install Kit for '91-'02 Blocks can be purchased. As well as a '87+ OE-Style COMP Hydraulic Roller Cam.
The Camshafts feature four different lobe patterns with one intake and exhaust design for outboard runners, and another intake and exhaust design for the inboard runners. While the four inboard cylinders are all the same grinds, the outboard exhaust openings are two degrees earlier, with outboard intake closings coming two degrees later. This is the first ever use of Technology in street vehicles to balance air/fuel ratio per cylinder and can net you a possible 1000+ RPM over other hydraulic Rollers and anywhere from 5-20+ horsepower peak to peak, depending on cylinder head flow. The 4-Pattern hydraulic Roller cams are CNC-Machined from Steel billet cores with cast iron distributor drive Gears. The cams also feature a tight lobe separation for both excellent performance and a throaty sound. 1: Cams for '55-'57 engines can be custom ordered. 2: The '87+ Chevy Small Block received provisions for Roller lifters. Most '87 - '93 GM cars came with Roller lifters, but most '87 - '95 trucks came with flat tappet lifters in Roller lifter style blocks. If your block has '87+ OEM-style Roller Cam provisions but does not have Roller components fitted, COMP Hydraulic Roller Lifter Install Kit for '91-'02 Blocks can be purchased. As well as a '87+ OE-Style COMP Hydraulic Roller Cam.
Application Summary:
| Year | Make/Model |
|---|---|
| 1995-1996 | AM General Hummer |
| 1965-1985 | Avanti II |
| 1987-1991 | Avanti II |
| 1965-1969 | Bizzarrini GT America |
| 1973-1974 | Buick Apollo |
| 1973 | Buick Centurion |
| 1973-1974 | Buick Century |
| 1977-1981 | Buick Century |
| 1991-1996 | Buick Commercial Chassis |
| 1970 | Buick Estate Wagon |
| 1973 | Buick Estate Wagon |
| 1970-1972 | Buick GS |
| 1968-1969 | Buick GS 350 |
| 1968-1974 | Buick LeSabre |
| 1978 | Buick LeSabre |
| 1973-1974 | Buick Regal |
| 1977-1980 | Buick Regal |
| 1982-1987 | Buick Regal |
| 1991-1996 | Buick Roadmaster |
| 1968-1972 | Buick Skylark |
| 1977-1979 | Buick Skylark |
| 1968-1969 | Buick Special |
| 1968-1972 | Buick Sportwagon |
| 1990-1992 | Cadillac Brougham |
| 1992-1996 | Cadillac Commercial Chassis |
| 1993-1996 | Cadillac Fleetwood |
| 1966-1974 | Checker Aerobus |
| 1969-1970 | Checker Deluxe |
| 1965-1982 | Checker Marathon |
| 1969-1974 | Checker Taxicab |
| 1959 | Chevrolet 3B |
| 1959 | Chevrolet 3C |
| 1959 | Chevrolet 3D |
| 1959 | Chevrolet 3E |
| 1959 | Chevrolet 3F |
| 1959 | Chevrolet 3G |
| 1980-1990 | Chevrolet B60 |
| 1955-1975 | Chevrolet Bel Air |
| 1981 | Chevrolet Bel Air |
| 1958-1972 | Chevrolet Biscayne |
| 1969-1974 | Chevrolet Blazer |
| 1987-1994 | Chevrolet Blazer |
| 1959-1961 | Chevrolet Brookwood |
| 1969-1972 | Chevrolet Brookwood |
| 1975-1986 | Chevrolet C10 |
| 1960-1974 | Chevrolet C10 Pickup |
| 1967-1986 | Chevrolet C10 Suburban |
| 1982-1985 | Chevrolet C15 |
| 1988-1995 | Chevrolet C1500 |
| 1992-1995 | Chevrolet C1500 Suburban |
| 1975-1987 | Chevrolet C20 |
| 1960-1974 | Chevrolet C20 Pickup |
| 1967-1986 | Chevrolet C20 Suburban |
| 1988-1995 | Chevrolet C2500 |
| 1992-1995 | Chevrolet C2500 Suburban |
| 1975-1986 | Chevrolet C30 |
| 1960-1974 | Chevrolet C30 Pickup |
| 1983-1994 | Chevrolet C35 |
| 1988-1995 | Chevrolet C3500 |
| 1991-1995 | Chevrolet C3500HD |
| 1960-1962 | Chevrolet C40 |
| 1980-1990 | Chevrolet C50 |
| 1980-1990 | Chevrolet C60 |
| 1986 | Chevrolet C70 |
| 1967-1986 | Chevrolet Camaro |
| 1966-1996 | Chevrolet Caprice |
| 2000 | Chevrolet Cargo Van |
| 1967-1973 | Chevrolet Chevelle |
| 1963-1968 | Chevrolet Chevy II |
| 1991-1994 | Chevrolet Commercial Chassis |
| 1955-1982 | Chevrolet Corvette |
| 1984-1986 | Chevrolet Corvette |
| 1957-1958 | Chevrolet Del Ray |
| 1959-1960 | Chevrolet El Camino |
| Attributes | |
| Advertised Inboard Exhaust Duration | 317, 317, 317 |
| Advertised Inboard Intake Duration | 305, 305, 305 |
| Advertised Outboard Exhaust Duration | 319, 319, 319 |
| Advertised Outboard Intake Duration | 307, 307, 307 |
| Amazon ASIN | B00CWZVB2C, B00CWZVB2C |
| ASIN | B00CWZVB2C |
| Assembly Lubricant Included | No, No, No |
| Basic Operating RPM Range | 3300-7,500, 3300-7,500, 3300-7,500 |
| C.A.R.B. E.O. Number | N/A, N/A |
| C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle., Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for On-Road Vehicles? | No, No |
| C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? | Yes, but must be a race/competition only vehicle., Yes, but must be a race/competition only vehicle. |
| C.A.R.B. Exemption Reason | N/A, N/A |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Cam Type | Hydraulic Roller, Hydraulic Roller, Hydraulic Roller |
| Camshaft Gear Attachment | 3-Bolt, 3-Bolt, 3-Bolt |
| Camshaft Material | Billet Steel, Billet Steel, Billet Steel |
| Camshaft Series | 4-Pattern, 4-Pattern |
| Country of Origin (Primary) | US |
| Emission Code | Not in CA |
| Engine Family | Chevrolet 262-400 c.i. 8 Cylinder (1958-1998), Chevrolet 262-400 c.i. 8 Cylinder (1958-1998), Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
| Engine Make/Size | Chevy Small Block (262-400) |
| Exh. Duration @ .050 in. (Deg) | 265 |
| Exh. Duration Advertised (Deg) | 319 |
| Exhaust Valve Lift (in.) | 0.622 |
| Grind Number | 305QIO8, 305QIO8 |
| Harmonized Tariff Code (Schedule B) | 8409914000 |
| Hazardous Material Code | N |
| Inboard Exhaust Duration at .050 inch Lift | 263, 263, 263 |
| Inboard Exhaust Valve Lift | 0.622, 0.622, 0.622 |
| Inboard Intake Duration at .050 Inch Lift | 253, 253, 253 |
| Inboard Intake Valve Lift | 0.638, 0.638, 0.638 |
| Int. Duration @ .050 in. (Deg) | 255 |
| Int. Duration Advertised (Deg) | 307 |
| Intake Valve Lift (in.) | 0.638 |
| Life Cycle Status Code | Available to Order |
| Lifter Style | Hydraulic Roller |
| Lifter Type | Hydraulic Roller, Hydraulic Roller, Hydraulic Roller |
| Lifters Included | No, No, No |
| NAFTA Preference Criterion Code | B |
| Outboard Exhaust Duration at .050 inch Lift | 265, 265, 265 |
| Outboard Exhaust Valve Lift | 0.622, 0.622, 0.622 |
| Outboard Intake Duration at .050 Inch Lift | 255, 255, 255 |
| Outboard Intake Valve Lift | 0.638, 0.638, 0.638 |
| RPM Range | 3300-7500 |
| SDR Required Flag | N |
| SDS Sheet Number | N/A |
| Usage | Street/Strip, Street/Strip |
| Valve Springs Required | Yes, Yes, Yes |
| Warranty Time | 12 |
| GTIN | 00036584259671 |