What is the benefit of using 1/2" studs with these rocker arms?

Using 1/2" studs with these Ultra Pro Magnum XD rocker arms significantly increases the stiffness and stability of your engine's valve train. This leads to more accurate valve motion and can help optimize performance, especially in high-performance applications.

What is the recommended spring pressure for these rocker arms?

These COMP Cams Ultra Pro Magnum XD rocker arms are built to handle up to 1,000 lbs of spring pressure. This makes them suitable for builds with aggressive camshafts and demanding valve spring requirements.

Do these rocker arms come with the necessary studs and guide plates?

This set includes the 16 rocker arms with a 1.5 ratio. It is designed to work with 1/2" rocker studs, which are sold separately. You may also need to check your specific application for guide plate requirements.

COMP Cams Rocker Arms 1.5 Ratio 1810-16 - Small Block Chevy

Name: COMP Cams Rockers CS 1.5 1/2in Ultra Pro
Brand: COMP Cams
SKU: comp-cams-comp-cams-rockers-cs-1-5-1-2in-ultra-pro-t14-4390846
Price: 693.57 USD
Availability: BackOrder

COMP Cams Rockers CS 1.5 1/2in Ultra Pro

$693.57

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams Ultra Pro Magnum XD rocker arms for Small Block Chevy engines. Built for improved valve train stability and strength.

Key Features

Fits a wide range of Chevrolet and GMC Small Block engines with 1/2" studs.
Constructed from durable 8650 steel for long-lasting performance.
Machined billet pushrod seat insert ensures a super-accurate 1.5 ratio.
Features precision-sorted needle bearings and hardened roller tips for smooth operation.
Designed to handle up to 1,000 lbs of spring pressure.
Increases valve train stiffness and stability for improved valve motion.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

If you're working on a Small Block Chevy engine and looking to dial in your valve train for maximum performance, these COMP Cams Ultra Pro Magnum XD rocker arms are a solid choice. They're designed specifically to work with 1/2" studs, which significantly increases the stiffness and stability of the valve train. This is crucial for achieving precise valve motion, whether you're on the street or at the track.

These rockers are well-built from durable 8650 steel and feature a machined billet pushrod seat insert. This insert ensures a super-accurate ratio, meaning you get consistent performance from each rocker. They also come with precision-sorted needle bearings and hardened roller tips, which help reduce friction and wear. COMP Cams engineered these to handle up to 1,000 lbs of spring pressure, making them a strong option for builds with aggressive camshafts and high spring rates. The 1/2" stud compatibility is a notable upgrade for anyone seeking more rigidity in their stud-mount rocker setup.

This set includes 16 rocker arms, enough for a V8 engine, and features a 1.5 ratio. They fit a wide range of Chevrolet and GMC vehicles from the 1950s through the 1990s, including popular models like the Chevrolet Camaro, Impala, and various C/K series trucks and Suburbans. Make sure to check the fitment data to confirm compatibility with your specific application.