Ultra Pro Magnum Rocker Arm Set W/ 1.6 Ratio For Ford 289-351W W/ 3/8" Stud

Ultra Pro Magnumâ„¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring Oversized trunnions, precision-sorted needle bearings and hardened Roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues. <ul> <li>Ford V8 289-302-351W - 3/8" Stud - 1.6 Ratio</li> <li>Investment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia. Unique black oxide exterior finish helps prevent corrosion and increases durability.</li> <li>Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.</li> <li>Feature Oversized trunnions, precision-sorted needle bearings and hardened Roller tips.</li> <li>Lifetime Warranty - So strong that we guarantee the Rocker bodies against breakage for life. For use with up to 850 lbs of open spring pressure.</li> </ul>

Attributes:

• Brand Name: COMP Cams
• GTIN: 00036584196181
• Amazon ASIN: B003HGPCHA
• C.A.R.B. E.O. Number: N/A
• 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.
• C.A.R.B. Exemption Reason: N/A
• Engine Family: Ford 289-351W
• Maximum Valve Spring Open Pressure: 850
• Rocker Arm Material: 8650 Chromemoly Steel
• Rocker Arm Ratio: 1
• Rocker Arm Series: Ultra Pro Magnum
• Rocker Stud Diameter: 3/8

Extended Information:

• Country of Origin: US
• Emissions : CARB Eligible

Packing Information:

• Quantity of Each: 1
• Package UOM: KT
• Dimension: 12.7 x 3.9 x 3.8 inches
• Weight: 8.9067 POUNDS