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 cast steel, 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.

COMPATIBLE WITH
CHEVROLET BIG BLOCK V8 ENGINES
• 6.5L / 396 in³
• 6.6L / 402 in³
• 7.0L / 427 in³
• 7.4L / 454 in³

COMMON VEHICLE APPLICATIONS
Chevrolet Chevelle / Camaro / Corvette
Chevrolet C10 / C20 / truck applications
Chevrolet Impala / El Camino / Monte Carlo

NOTES
Fits compatible stud-mount big block Chevy valvetrain applications.
Verify rocker ratio, stud size, pushrod length, guideplate alignment, valve spring clearance, and valve cover clearance before installation.

SPECIFICATIONS:
Grade Type: Performance
Material: Cast Steel
Maximum RPM: 7,000
Mounting Type: Stud
Open Pressure Rating: 500 lbs.
Quantity: 16
Rocker Arm Body Style: Standard
Rocker Arm Finish: Natural
Rocker Arm Material: Cast Steel
Rocker Arm Nut Type: Poly Lock
Rocker Arm Ratio: 1.7
Rocker Arm Type: Roller Tip
Self Aligning: No
Shims Included: No
Stud Thread Diameter: 7/16 in.