Article no.:
1807-16
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COMP Cams Rockers CS 1.55 3/8in Ultra Pro
Take your Small Block Chevrolet to the next level with the COMP Cams Ultra Pro Magnum XD Roller Rocker Arms. Built to outlast and outperform, these rockers feature a 1.55 ratio and 3/8" stud diameter, making them perfect for a wide range of applications.
Machined from durable 8650 steel with a billet pushrod seat insert, these rockers can handle up to 1,000 lbs of spring pressure. The Ultra Pro Magnum XD design utilizes advanced FEA and CAD development to improve strength, stiffness, and MOI optimization for drag and circle track applications.
- 1.55 ratio for use with 3/8" stud Chevrolet 265-400 Small Block
- Machined billet pushrod seat insert for super accurate ratios
- 8650 steel construction outlasts and outperforms other rockers in accuracy and strength
- Fully rebuildable with precision-sorted needle bearings and hardened roller tips
This product fits more vehicles than loaded. Please select your vehicle to see all fits.
| Make | Model | Year | Type |
|---|---|---|---|
| Buick | Apollo | 1973 | Base |
| Buick | Apollo | 1974 | Base |
| Buick | Apollo | 1975 | Base |
| Buick | Apollo | 1975 | SR |
| Buick | Centurion | 1972 | Base |
| Buick | Centurion | 1973 | Base |
| Buick | Century | 1973 | Base |
| Buick | Century | 1973 | Luxus |
| Buick | Century | 1974 | Base |
| Buick | Century | 1974 | Luxus |
| Buick | Century | 1975 | Base |
| Buick | Century | 1975 | Custom |
| Buick | Century | 1975 | Luxus |
| Buick | Century | 1976 | Base |
| Buick | Century | 1976 | Custom |
| Buick | Century | 1976 | Indianapolis 500 Pace Car |
| Buick | Century | 1977 | Base |
| Buick | Century | 1977 | Custom |
| Buick | Century | 1978 | Custom |
| Buick | Century | 1978 | Limited |
| Buick | Century | 1978 | Special |
| Buick | Century | 1978 | Sport |
| Buick | Century | 1979 | Custom |
| Buick | Century | 1979 | Limited |
| Buick | Century | 1979 | Special |
| Buick | Century | 1980 | Base |
| Buick | Century | 1980 | Estate |
| Buick | Century | 1980 | Limited |
| Buick | Commercial Chassis | 1991 | Base |
| Buick | Commercial Chassis | 1992 | Base |
| Buick | Commercial Chassis | 1993 | Base |
| Buick | Electra | 1976 | 225 |
| Buick | Electra | 1976 | Limited |
| Buick | Electra | 1977 | 225 |
| Buick | Electra | 1977 | Limited |
| Buick | Estate Wagon | 1973 | Base |
| Buick | GS | 1972 | Base |
| Buick | LeSabre | 1972 | Base |
| Buick | LeSabre | 1972 | Custom |
| Buick | LeSabre | 1973 | Base |
| Buick | LeSabre | 1973 | Custom |
| Buick | LeSabre | 1974 | Base |
| Buick | LeSabre | 1974 | Luxus |
| Buick | LeSabre | 1977 | Base |
| Buick | LeSabre | 1977 | Custom |
| Buick | LeSabre | 1977 | Custom Sport |
| Buick | LeSabre | 1978 | Base |
| Buick | LeSabre | 1978 | Custom |
| Buick | Regal | 1973 | Base |
| Buick | Regal | 1974 | Base |
| Buick | Regal | 1975 | Base |
| Buick | Regal | 1976 | Base |
| Buick | Regal | 1976 | SR |
| Buick | Regal | 1977 | Base |
| Buick | Regal | 1977 | SR |
| Buick | Regal | 1978 | Base |
| Buick | Regal | 1978 | Limited |
| Buick | Regal | 1979 | Base |
| Buick | Regal | 1979 | Limited |
| Buick | Regal | 1980 | Base |
| Buick | Regal | 1980 | Limited |
| Buick | Roadmaster | 1991 | Estate Wagon |
| Buick | Roadmaster | 1992 | Base |
| Buick | Roadmaster | 1992 | Estate Wagon |
| Buick | Roadmaster | 1992 | Limited |
| Buick | Roadmaster | 1993 | Base |
| Buick | Roadmaster | 1993 | Estate Wagon |
| Buick | Roadmaster | 1993 | Limited |
| Buick | Skylark | 1972 | 350 |
| Buick | Skylark | 1972 | Base |
| Buick | Skylark | 1972 | Custom |
| Buick | Skylark | 1975 | Base |
| Buick | Skylark | 1975 | SR |
| Buick | Skylark | 1976 | Base |
| Buick | Skylark | 1976 | S |
| Buick | Skylark | 1976 | SR |
| Buick | Skylark | 1977 | Base |
| Buick | Skylark | 1977 | S |
| Buick | Skylark | 1977 | SR |
| Buick | Skylark | 1978 | Base |
| Buick | Skylark | 1978 | Custom |
| Buick | Skylark | 1978 | S |
| Buick | Skylark | 1978 | Sport |
| Buick | Skylark | 1979 | Base |
| Buick | Skylark | 1979 | Custom |
| Buick | Skylark | 1979 | S |
| Buick | Sportwagon | 1972 | Base |
| Cadillac | Brougham | 1990 | Base |
| Cadillac | Brougham | 1990 | d'Elegance |
| Cadillac | Brougham | 1991 | Base |
| Cadillac | Brougham | 1991 | d'Elegance |
| Cadillac | Brougham | 1992 | Base |
| Cadillac | Brougham | 1992 | d'Elegance |
| Cadillac | Commercial Chassis | 1992 | Brougham |
| Cadillac | Commercial Chassis | 1993 | Brougham |
| Cadillac | Eldorado | 1980 | Base |
| Cadillac | Eldorado | 1980 | Biarritz |
| Cadillac | Eldorado | 1980 | Cabriolet |
| Cadillac | Fleetwood | 1993 | Base |
| Cadillac | Fleetwood | 1993 | Brougham |
COMP Cams manufactures camshafts and other valvetrain components. Products include everything from valve springs and hardware to pushrods, lifters, and even intake manifolds. COMP Cams’ history of producing high quality parts for everything from street cars to Pro Stock and Sprint Cup teams has proven their place in the market. The same technology used to develop parts for NASCAR and NHRA is used in all of their performance parts, down to the very basic street setup.
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