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
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 1.52 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 size of the COMP Cams rocker arm set?A: The size of the COMP Cams rocker arm set is thirteen inches in length, four inches in width, and four inches in height.
Q: What is the stud size for these rocker arms?A: The stud size for these rocker arms is three-eighths of an inch.
Q: What is the ratio of these rocker arms?A: The ratio of these rocker arms is one point five two.
Q: What material are these rocker arms made from?A: These rocker arms are made from high-strength eight thousand six hundred fifty chromemoly material.
Q: Do these rocker arms fit specific Chevrolet models?A: Yes, these rocker arms are designed for Chevrolet small block V8 engines with displacements ranging from two hundred sixty-five to four hundred cubic inches.
Q: How are the rocker arms installed?A: These rocker arms are installed using a three-eighths inch stud mount, making them compatible with various Chevrolet SBC applications.
Q: Can I use these rocker arms with different valve springs?A: Yes, these rocker arms allow for the use of most diameter springs without clearance issues due to optimized retainer and valve spring clearances.
Q: How do I maintain the COMP Cams rocker arms?A: To maintain the rocker arms, regularly check for wear and ensure they remain lubricated during operation to prolong their lifespan.
Q: Are these rocker arms resistant to corrosion?A: Yes, these rocker arms feature a unique black oxide exterior finish that helps prevent corrosion and increases durability.
Q: Can I return the rocker arms if there is an issue?A: Yes, if there is an issue with the rocker arms, you can return them according to the retailer's return policy.
Q: What if the rocker arms arrive damaged?A: If the rocker arms arrive damaged, contact the retailer immediately to initiate a return or exchange process.
Q: Are these rocker arms suitable for performance upgrades?A: Yes, these rocker arms are designed for high performance with features like oversized trunions and precision-sorted needle bearings.
Q: Do these rocker arms require special installation tools?A: No, standard tools for installing rocker arms should suffice, but ensure proper torque specifications are followed.
Q: Is there a warranty on the COMP Cams rocker arms?A: Yes, COMP Cams typically offers a warranty on their rocker arms, but check the specific warranty details from the retailer.
Q: Are these rocker arms suitable for beginners?A: While these rocker arms are designed for performance, they can be installed by beginners with some mechanical knowledge and proper guidance.
Q: What are the main benefits of using these rocker arms?A: The main benefits include increased strength, improved rigidity, reduced inertia, and enhanced performance reliability for Chevrolet engines.