S&S HPT 560 Cam Chest Kit for 2023 to Present Harley-Davidson M8 Models With VVT

Regular price ¥290,400
Pushrod Tune Color

The HPT 560 Cam Chest Kit for 2023-2026 H-D® M8 Models With VVT includes:

Chain Drive HPT560

(NOTE: The VVT560 cam can only be installed on a 121 engine)

Bolt-In Design for Easy Installation:

  • Engineered as a direct-fit replacement for 2023 and newer Harley-Davidson® models with VVT camshaft systems. No custom grinding or complex timing adjustments required—install with confidence and hit the road faster.

Massive Power Gains:

  • Boost your performance with up to 24 HP increase over stock when paired with S&S Cycle intake and exhaust systems. Experience the thrill of enhanced acceleration and top-end power.

Torque That Turns Heads:

  • Gain 14 lb-ft of torque over stock for superior low-end pull and mid-range grunt, perfect for highway cruising or spirited backroad adventures.

Full Compatibility:

  • Works flawlessly with your stock valvetrain for hassle-free reliability. Also optimized for S&S rocker arms, allowing for even greater customization and performance potential.

Premium Construction:

  • Crafted from high-strength billet 8620 steel for exceptional durability, wear resistance, and longevity under high-stress conditions. This billet material ensures precise lobe profiles and consistent performance mile after mile.

Quickee Adjustable Pushrods:

  • Simple installation and on bike adjustment
  • No need to remove rocker boxes

S&S Precision Tappets:

  • Hand-assembled to exacting tolerances
  • Reduced valvetrain noise with superior high RPM performance

Close tolerances ensure consistent oil pressure and lift Tappet Cuffs:

  • Hard anodized billet aluminum constructionEliminates distortion for improved tappet stability
  • Optimized for high-lift and high-RPM operation

Oil Pump & Cam Plate:

  • Precision CNC machined from billet aluminum
  • Independent scavenge sections for flywheel cavity and cam chest
  • Removable passage plugs for easy servicing
  • Dual debris screens and magnetic pickup for superior oil filtration
  • +44% increase in oil supply flow / +58% increase in scavenging efficiency
  • Adjustable pressure relief valve (tunable while installed)

See our available tuners HERE:

Part Numbers:
P/N: 0925-1652
Manufacturer Part: 310-1432
P/N: 0925-1653
Manufacturer Part: 310-1433

  • 2023 to Present Harley-Davidson modes with 121 VVT engine

NOTE:  An engine tuner is required to properly tune your motorcycle to work with this cam chest kit.  It is your responsibility to ensure a proper tuner and tune map is available for your application.

See our available tuners HERE