ARP 234-7207 Pro Series 8740 Rocker Arm Stud Kit non-adj. for Chevy LS Gen III

Vehicle Fitment

• Chevrolet LS Gen III/IV (non-adjustable rocker arms), excluding LS7 (fitment confirmed through 2024; 2025 unconfirmed)

Features

• Pro-Series construction from 8740 chromoly steel
• Heat-treated to approximately 200,000 psi tensile strength
• Non-adjustable design - ideal for performance street and racing applications
• Installed height: 1.460" for accurate valvetrain geometry
• Adjuster thread length: 0.500" for proper thread engagement
• Uses standard 5/16-24 adjusters (not included)
• Provides enhanced clamping over stock nut & bolt setup
• Compatible with LS Gen III/IV valve covers and rocker assemblies

Specifications

• Material: 8740 chromoly steel
• Tensile strength: ~200,000 psi (heat-treated)
• Installed Height: 1.460"
• Adjuster Thread Length: 0.500"
• Socket Compatibility: 3/8" 12-point and 1/8" Allen (for install)
• Screw-in Depth: 1.100"
• Screw-in Base Thread Size: M8 x 1.25

Included Components

• 16x rocker arm studs (Pro-Series, non-adjustable)
• No adjusters or nuts included (adjusters must be sourced separately)

Product Description

The ARP 234-7207 Pro-Series 8740 Rocker Arm Stud Kit delivers serious durability and precision for Chevrolet LS Gen III and IV engine builds, excluding LS7 platforms. Crafted from high-grade 8740 chromoly steel and heat-treated to around 200,000 psi tensile strength, these studs ensure stability and improved valvetrain accuracy under high RPM and heavy loads. The 1.460" installed height and 0.500" adjuster thread length maintain proper geometry, while the non-adjustable design streamlines installation in high-performance applications.

Designed for racers and performance enthusiasts, this kit replaces weaker factory bolts and eliminates adjuster movement factors. The studs are engineered to accept standard 5/16-24 adjusters (not included), offering flexibility for aftermarket valvetrain components. Installation requires a combination of 3/8" 12-point and 1/8" Allen tools. Fitment is verified through 2024; 2025 compatibility remains unconfirmed at this time.