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Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
The Ultra Pro Magnum Roller Rocker Arms for Chevy V8 265-400 applications 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. These rocker arms feature a 3/8'' stud diameter and 1.6 ratio. 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 trunions, 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.
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
Q: What is the stud size for the COMP Cams rocker arm set?A: The stud size is three eighths of an inch. This size is standard for Chevrolet small block applications.
Q: What is the ratio of the rocker arms?A: The ratio is one point six. This provides a balance of performance and efficiency for Chevy V8 engines.
Q: What material are the rocker arms made from?A: They are made from investment cast eighty six fifty chromemoly. This material offers increased strength and durability.
Q: What are the dimensions of the rocker arm set?A: The dimensions are thirteen inches long, four point zero two inches wide, and four point zero two inches high. These measurements ensure a proper fit in the engine compartment.
Q: How many rocker arms are included in the set?A: The set includes a total of sixteen rocker arms. This is suitable for a complete installation on a V8 engine.
Q: How do I install the COMP Cams rocker arms?A: You should follow the manufacturer's installation instructions carefully. Proper torque specifications and sequence are essential for optimal performance.
Q: Are these rocker arms suitable for stock engines?A: Yes, they are suitable for stock Chevrolet small block engines. However, performance upgrades may be necessary for maximum efficiency.
Q: Can I use these rocker arms with aftermarket valve springs?A: Yes, they are optimized for use with most diameter springs and retainers. This versatility allows for compatibility with a range of aftermarket components.
Q: What is the best way to maintain these rocker arms?A: Regularly inspect for wear and ensure proper lubrication. Keeping them clean will extend their lifespan and maintain performance.
Q: Is there any special care needed for the rocker arms' finish?A: No special care is required, but it's advisable to keep them clean to prevent corrosion. The black oxide finish helps protect against oxidation.
Q: What if I receive a damaged rocker arm set?A: You should contact customer support immediately for assistance. Most retailers will provide a return or exchange policy for damaged items.
Q: How long is the warranty on the COMP Cams rocker arms?A: Typically, the warranty lasts for one year from the date of purchase. Check with the retailer for specific warranty details.
Q: Can these rocker arms fit in high-performance applications?A: Yes, they are designed for high-performance applications as well. Their sturdy construction and features make them suitable for racing and modified engines.
Q: What are the advantages of using COMP Cams rocker arms?A: They provide increased strength, reduced inertia, and enhanced performance. These features contribute to better engine efficiency and reliability.
Q: Do I need any additional parts for installation?A: You may need additional components like gaskets and pushrods depending on your specific engine setup. Always check compatibility before installation.