Ultra Pro Magnum XD Rocker Set W/ 1.5 Ratio For Chevrolet SBC W/ 1/2" Stud

<b>The latest development in Rocker arm Technology from COMP Cams are Ultra Pro Magnumâ„¢ XD Rocker Arms built for 1/2" Studs to increase valve train stiffness and stability.</b> Designed to be used in conjunction with the COMP Cams Hi-Tech 1/2" Rocker Stud Kit, the latest versions of COMP Cams Ultra Pro Magnum XD are built to utilize 1/2" Studs to stabilize SBC valve trains. Ultra Pro Magnumâ„¢ XD Rockers are built to outlast and outperform in accuracy and strength, while maintaining all the benefits of the Ultra Pro Magnumâ„¢ version. The XD Rockers are engineered from durable 8650 Steel and include a machined billet Pushrod seat insert for a super-accurate ratio. The Rockers also boast precision-sorted needle bearings and hardened Roller tips. And since they now feature the added benefit of accepting 1/2" Studs, they are a great choice for anyone looking for more stiffness with Stud mount Rockers. These new Ultra Pro Magnumâ„¢ XD Rocker Arms will provide the ultimate in valve train stability for maximum valve motion both at the track and on the street. <ul> <li>1/2" Studs provide a stiffer valve train to achieve maximum valve motion in SBC engines</li> <li>Deliver increased strength and rigidity while reducing the moment of inertia and optimizing dynamic balance</li> <li>Ultra Pro Magnumâ„¢ XD Rockers feature a machined billet Pushrod seat insert for a super-accurate ratio</li> </ul>

Attributes:

• Brand Name: COMP Cams
• GTIN: 00036584259466
• Amazon ASIN: B00CWZV40G
• 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: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
• Maximum Valve Spring Open Pressure: 1000
• Rocker Arm Material: 8650 Chromemoly Steel
• Rocker Arm Ratio: 1.5
• Rocker Arm Series: Ultra Pro Magnum XD
• Rocker Stud Diameter: 1/2

Extended Information:

• Country of Origin: United States
• Emissions : CARB Eligible

Packing Information:

• Quantity of Each: 1
• Package UOM: KT
• Dimension: 12.8 x 4.1 x 3.8 inches
• Weight: 9.3035 POUNDS