WP580-M8

$345.00

Instant torque for big-bore baggers. The WP580-M8 shifts the punch lower in the revs, lighting up 124 to 132 cubic inch builds — and the H-D 131 crate motor — right off idle. Torque rolls in at 2,500 RPM, surges past 3,000, and holds strong to 6,000 RPM, with dyno numbers landing in the mid-160s for both horsepower and torque. A crisp, lopey idle hints at the .580" lift and revised timing, yet street manners stay civil for long hauls. Plan on upgraded springs, pushrods, and a proper tune; bolt it in, twist the throttle, and feel big-bore pull everywhere on the graph.

Key Features & Rider Benefits:

  • Early Power Delivery: Significant boost in low-end torque and horsepower that comes on sooner than the WP550 cam.

  • Broad, Usable Powerband: Delivers a powerful hit from 2500 RPM and pulls hard to 6000 RPM, giving you incredible passing power and thrilling acceleration.

  • Big Bore Dominance: Specifically designed to maximize 124" to 132" big bore builds, with proven results in the 160s for both horsepower and torque.

  • 131 Crate Engine Drop-In: Fantastic drop-in camshaft for the Harley-Davidson 131 crate engine, capable of producing mid-150s horsepower and torque with no other modifications.

  • Performance Sound: Produces a nice, lopey idle, giving your M8 a distinctive performance sound that matches its power.

Instant torque for big-bore baggers. The WP580-M8 shifts the punch lower in the revs, lighting up 124 to 132 cubic inch builds — and the H-D 131 crate motor — right off idle. Torque rolls in at 2,500 RPM, surges past 3,000, and holds strong to 6,000 RPM, with dyno numbers landing in the mid-160s for both horsepower and torque. A crisp, lopey idle hints at the .580" lift and revised timing, yet street manners stay civil for long hauls. Plan on upgraded springs, pushrods, and a proper tune; bolt it in, twist the throttle, and feel big-bore pull everywhere on the graph.

Key Features & Rider Benefits:

  • Early Power Delivery: Significant boost in low-end torque and horsepower that comes on sooner than the WP550 cam.

  • Broad, Usable Powerband: Delivers a powerful hit from 2500 RPM and pulls hard to 6000 RPM, giving you incredible passing power and thrilling acceleration.

  • Big Bore Dominance: Specifically designed to maximize 124" to 132" big bore builds, with proven results in the 160s for both horsepower and torque.

  • 131 Crate Engine Drop-In: Fantastic drop-in camshaft for the Harley-Davidson 131 crate engine, capable of producing mid-150s horsepower and torque with no other modifications.

  • Performance Sound: Produces a nice, lopey idle, giving your M8 a distinctive performance sound that matches its power.

PERFORMANCE PROFILE:

  • Effective RPM Range: 2500 - 6000 RPM

  • Recommended Engine Displacements: 124" to 132" big bore M8 engines; also an excellent drop-in cam for the H-D 131" Crate Engine

  • Ideal Rider: The full-size bagger owner with a big bore kit looking for potent, hot street performance

  • Recommended Static Compression Ratio: 11:1 to 11.5:1 (11.5:1 optimal)

CAM SPECS:

  • Valve Lift (Intake & Exhaust): .580" / .580"

  • Intake Opens (BTDC @ .050"): 10 degrees

  • Intake Closes (ABDC @ .050"): 42 degrees

  • Exhaust Opens (BBDC @ .050"): 63 degrees

  • Exhaust Closes (ATDC @ .050"): 11 degrees

  • Intake Duration (@ .050" lift): 236 degrees

  • Exhaust Duration (@ .050" lift): 254 degrees

  • Intake Centerline: 104 degrees

  • Exhaust Centerline: 116 degrees

  • Intake TDC Lift (@ TDC): .152"

  • Exhaust TDC Lift (@ TDC): .130"

INSTALLATION REQUIREMENTS:

  • This is NOT a bolt-in camshaft. Supporting modifications are required.

  • Valve Springs: Requires upgraded valve springs capable of handling .580" lift

  • Pushrods: Requires adjustable pushrods

  • Lifters: Performance lifters recommended for optimal performance and durability

  • Engine Tuning: Full professional dyno tune recommended for optimal performance and engine safety

FITMENT:

  • Cam Type: Not a bolt-in camshaft

  • Sold as: Cam only

  • Compatible with: Harley-Davidson 2017 to current M8 engines

  • Excludes: VVT models

  • Supporting Mods: Upgraded throttle body, intake manifold, performance exhaust, and high flow air cleaner recommended for maximum performance

  • Made in the USA