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Part # 1601-16
ULTRA Pro Magnumâ„¢ Roller Rocker Arms. The Ultra Pro Magnumâ„¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnumâ„¢ Rockers, but they also take Stud mount Rocker performance, stability and value to a whole new level. The modern arched, web-like design delivers increa sed strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. Applications: Chevrolet Small Block 265-400 c.i.d. V8 3/8" Studs / 1.52:1 Ratio.
< ul>< li> Investment cast 8650 chromemoly body and arched, weblike design deliver increased strength and rigidity while reducing M.O.I.</li>< li> Unique black oxide exterior finish helps prevent corrosion, thus increasing durability</li>< li> Increased retainer and valve spring clearances allow use of large diameter springs, retainers and +.050" locks with o clearance or fitment issues</li>< li> Feature Oversized trunnions, precision-sorted needle bearings and hardened Roller tips</li>< li> withstand valve spring pressures up to 850 lbs.</li>< li> Also Available in A Rocker/Pushrod Kit</li></ul>
| Amazon ASIN | B003HGQQJ8 |
|---|---|
| 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. |
| Engine Family | Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
| Maximum Valve Spring Open Pressure | 850 |
| Rocker Arm Material | 8650 Chromemoly Steel |
| Rocker Arm Ratio | 1.52 |
| Rocker Arm Series | Ultra Pro Magnum |
| Rocker Stud Diameter | 3/8 in |
| UPC / GTIN | 00036584195771 |
| Warranty | Ultra Pro Magnum Rocker Arm bodies are guaranteed for life. warranty |