S&S HPT 560 Cam Chest Kit for 2023 -2026 Harley M8 VVT - Black

Product Description

S&S Cycle HPT 560 Cam Chest Kit for 2023-2026 H-D M8 Models with VVT

Race-proven cam chest package engineered to unlock serious power and torque from 2023-current Harley-Davidson Milwaukee-Eight models with Variable Valve Timing. The HPT560 is a bolt-in replacement cam built from high-strength billet 8620 steel with massive lobe profiles engineered to deliver up to 24 horsepower and 14 lb-ft of torque over stock when paired with S&S Cycle intake and exhaust systems. Complete kit includes the HPT560 cam, Quickee adjustable pushrods with on-bike adjustment capability, precision S&S tappets hand-assembled to exacting tolerances, hard-anodized billet aluminum tappet cuffs, and a precision-machined CNC billet aluminum oil pump and cam plate. The oil pump delivers 44 percent more flow and 58 percent better scavenging efficiency with independent circulation for flywheel cavity and cam chest. Dual debris screens, magnetic pickup, and adjustable pressure relief valve keep internals protected under high RPM load. Includes S&S High Performance cam chain tensioner. No custom grinding, no timing adjustments, no rocker box removal required. Direct bolt-in installation designed specifically for 121-cubic-inch M8 engines with VVT systems.

Fitment

• Harley-Davidson Milwaukee-Eight 2023-2026 models with VVT camshaft systems
• Compatible with 121 cubic inch engines only
• Works with stock valvetrain for direct bolt-in installation
• Optimized for S&S rocker arms
• Compatible with stock Harley oil lines and fittings
• No custom grinding required
• No timing adjustments needed
• No rocker box removal during installation

Features & Benefits

• HPT 560 Cam - Billet 8620 steel construction with aggressive lobe profiles
• Massive Power Gains - Up to 24 horsepower increase over stock with S&S intake/exhaust
• Torque Boost - 14 lb-ft additional torque for low-end pull and mid-range grunt
• Bolt-In Design - Direct replacement, no custom work or complex timing
• VVT Compatible - Engineered specifically for 2023+ variable valve timing systems
• Quickee Adjustable Pushrods - Simple installation with on-bike adjustment capability
• S&S Precision Tappets - Hand-assembled to exacting tolerances
• Reduced Valvetrain Noise - Superior high RPM performance with tight tolerances
• Billet Aluminum Tappet Cuffs - Hard anodized for stability and distortion elimination
• Precision Oil Pump - CNC machined from billet aluminum for durability
• 44% More Oil Flow - Increased supply circulation to critical areas
• 58% Better Scavenging - Independent circuits for flywheel cavity and cam chest
• Dual Debris Screens - Magnetic pickup and multi-stage filtration
• Adjustable Pressure Relief - Tunable while installed for fine-tuning
• S&S High Performance Cam Chain Tensioner - Included for reliable chain control
• Stock Valvetrain Compatible - Works with OEM rocker arms or upgrades to S&S units

Why Upgrade?

Stock M8 cams are conservative. They're engineered for EPA compliance and broad appeal, not for the power and feel you want from your Harley. The HPT560 is built on race-proven engineering that Screamin' Eagle and high-end builders trust. Up to 24 horsepower is real-world power you'll feel instantly off the line and through the midrange. That 14 lb-ft torque bump isn't just a number, it's noticeable low-end snarl that transforms how your bike pulls. Billet 8620 steel is what serious engine builders use, not casting. The aggressive lobe profiles are computer-optimized for maximum lift and duration without sacrificing reliability. The Quickee pushrods adjust on the bike without pulling rocker boxes, which means you can fine-tune preload in minutes instead of hours. Hand-assembled S&S tappets come in at tolerances so tight they reduce valvetrain noise and maximize high RPM stability. The CNC oil pump is the unsung hero here. Stock oil systems weren't engineered for aggressive cam profiles and high RPM operation. Forty-four percent more flow and fifty-eight percent better scavenging keeps your bottom end healthy under extreme conditions. Dual debris screens and magnetic pickup mean you're not inhaling wear particles. Direct bolt-in installation means zero guesswork. No custom grinding, no timing adjustments, install it and run. This is the cam chest package for builders who want serious power without compromise.

Note: S&S Cycle HPT 560 Cam Chest Kit for 2023-2026 H-D M8 Models with VVT. SKU 310-1433. Chain drive HPT560 cam, billet 8620 steel construction. Quickee adjustable pushrods with on-bike adjustment. S&S precision hand-assembled tappets. Hard-anodized billet aluminum tappet cuffs. CNC machined billet aluminum oil pump and cam plate. 44% increased oil flow, 58% increased scavenging efficiency. Dual debris screens, magnetic pickup. Adjustable pressure relief valve. S&S High Performance cam chain tensioner included. Fits 121 cubic inch Milwaukee-Eight 2023-2026 with VVT only. Compatible with stock valvetrain and S&S rocker arms. No rocker box removal required. Direct bolt-in installation. Up to 24 HP increase and 14 lb-ft torque gain with S&S intake and exhaust. Made in USA.