Chevy Big Block 6061-T6 Aluminum 1.7 Ratio 7/16" Roller Rocker Arms

• Fits Chevrolet Big Block V8 stud-mount valvetrain applications

• Aluminum construction reduces valvetrain mass while maintaining strength and durability under load

• Designed for stud mount configurations with roller tip or full roller design for reduced friction

• Improves valve train stability and efficiency; verify pushrod length, guideplate alignment, and clearance before installation

Big Block Chevy 1.7 Ratio Roller Rocker Arms for Improved Valvetrain Performance

These 1.7 ratio roller rocker arms are designed for Big Block Chevy applications, helping improve valve lift, reduce friction, and support more responsive engine performance.

Built from 6061-T6 aluminum, this rocker arm design balances strength, durability, and valvetrain stability for street performance, restoration, and upgraded engine builds.

The precision valvetrain design helps promote smoother rocker motion and more consistent valve control, especially when paired with compatible camshaft, pushrod, and valve spring combinations.

Configured for 7/16 in. stud applications where applicable, these rocker arms are built for proper fitment and reliable operation. Always verify rocker ratio, stud size, pushrod length, guideplate alignment, and valve spring clearance before installation.

What applications are these rocker arms compatible with?
These rocker arms are designed for COMPATIBLE WITH, CHEVROLET BIG BLOCK V8 GEN. II (Mark IV), 6.5 L / 396 in3, 6.6 L / 402 in3, 7.0 L / 427 in3, 7.4 L / 454 in3.

Will these rocker arms fit my engine?
These rocker arms are intended for Chevy/GM applications and should match your cylinder head and valvetrain setup.

What do rocker arms do?
Rocker arms transfer motion from the camshaft to the valves, controlling valve opening and closing.

What is the rocker arm ratio?
These rocker arms have a 1.7 ratio, which affects valve lift and engine performance.

What material are these rocker arms made from?
These rocker arms are made from aluminum, providing strength while reducing weight.

What stud size do these rocker arms require?
These rocker arms are designed for 7/16" studs.

How many rocker arms are included?
This set includes 16 rocker arms.

Will these rocker arms increase performance?
Yes, performance rocker arms can improve valve control, reduce friction, and increase power potential.

Do I need supporting modifications for these rocker arms?
Depending on your setup, you may need compatible pushrods, valve springs, and proper valvetrain geometry.

Do rocker arms affect valve lift?
Yes, rocker arm ratio directly affects valve lift and can change engine performance characteristics.

Are these a good upgrade over stock rocker arms?
Yes, aftermarket rocker arms can improve durability, accuracy, and performance over stock components.

Can these rocker arms be used in performance builds?
Yes, rocker arms are commonly used in performance and high-performance engine builds.