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COMP Cams 1828-1 Ultra Pro Magnum XD Rocker w/ 1.8 Ratio for Chevrolet Big Block w/ 7/16" Stud
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Enter your Engine Family Number and we will confirm whether this exact converter is street-legal for your vehicle.
Machined from 8650 steel with a billet pushrod seat insert, these Ultra Pro Magnum XD rockers can handle up to 1,000 lbs of spring pressure. This 1828 rocker features a 1.8 ratio for use with 7/16" stud Chevrolet 396-454 Big Block.
The Ultra Pro Magnumâ„¢ XD Rocker Arms are engineered from durable 8650 Steel that outlasts and outperforms other inferior knock-off and import Rockers. A unique machined billet Pushrod seat insert offers exceptional durability. These new Stud mount Rockers are fully rebuildable and use precision-sorted needle bearings and hardened Roller tips to better distribute the load and reduce wear for a longer service life. In addition, they work with most diameter springs and retainers. The XD design utilizes advanced FEA and CAD design and development to improve strength, stiffness and MOI optimization for endurance, drag and circle track Applications.
Specifications
| Engine Family | Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) |
| Maximum Valve Spring Open Pressure | 1000 |
| Rocker Arm Material | 8650 Chromemoly Steel |
| Rocker Arm Ratio | 1.8 |
| Rocker Arm Series | Ultra Pro Magnum XD |
| Rocker Stud Diameter | 7/16 IN |
⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
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