M8 Stage 3 & 4 Essentials

Go big or go home. Our Harley-Davidson Stage 3 Upgrade Kits are designed for riders demanding a massive increase in displacement and power. By increasing the cylinder bore and adding high-compression pistons, a Stage 3 kit transforms your engine into a high-performance powerhouse without sacrificing reliability.

Cycle Rama APE/CR-483 M8 Complete Cam Installation Kit 17 up M8

Cycle-Rama CR-484 M8 Cam Chain Drive M8 Camshaft with install kit

VTP M8 Intake Manifolds 55-60 mm, 65mm, (stock style & mounting)

Wood Performance Alpha 2.0 Lifters

Lifter Cover - Gloss Black - M8 0940-1884

S&S CNC-Ported Intake Manifold - M8 - 55 mm - Black 160-0276

Cycle-Rama CR574 M8 Bolt-In Camshaft only or with install Kit for 117 & 121 Gen 2

S&S Intake Manifold - M8 Gen 1 - 55 mm - Silver 160-0241A

Cam Phaser Tool - Spool Valve - M8 CVO 530-0072

Feuling Cam Chain Tensioner - Billet - M8

Camshaft Bearing Removal & Installer Tool for Harley M8 2017-2026

Cycle-Rama CR480MTM20 Complete Cam Installation Kit 20 up M8

S&S Cam Chain Tensioner - M8

Cycle-Rama CR200 lifters

FLO Oil Filter for 1991-2026 Harley Davidson EVO, Twin Cam, & M8

S&S Cycles Heavy Duty Compensator Ramp - Black - M8

S&S CYCLE Cam Chain Tensioner - M8

Feuling Cam chain Inner and Outer

Feuling M-8 Beehive® Valve Spring Kit (includes titanium retainers)#1108

CR483 M8 Camshaft Complete Installation Kit 2017–2019

309-591 ThunderMax Engine Control Module Kit with Integral Auto Tune'21-'24 Touring

1861-0694 Weld-in O2 Bungs - 18 mm - 45°

#534-821 ZIPPER'S 4.085 M8 +.010 121" +3.7CC PSKT

VTP10020 M8 Billet Fuel Rail and Fuel Line Fitting

HPI Milwaukee 8® Throttle Bodies

HPI 70MM M8® Center-Flo 2.0 Throttle Body

S&S Cycles Cam Chest Kit without Cams - Chain Drive - Water Cooled M8

ThunderMax 2023.5-Up Touring® (VVT) Center Cooled Models 309-605

S&S Cycle HPT496 M8 Cam

Feuling M-8 Valve Spring Kit - Endurance Beehive (uses factory retainers) #1107

S&S Camshaft Kit - 475C Chain Drive - M8 330-0641

Harley-Davidson M8 High Volume Performance 8 Lobe Oil Pump Scavenge PN 62400247 oil cool (62400248 Twin Cool

HD 779 OHLINS Shock Absorber - 13" - Fully Adjustable - STX36 Blackline (HD 779)

ThunderMax Engine Control Module Kit with Integral Auto Tune - '21-'24 Softail 309-592

S&S Roller Rocker Arms - 1.640 Rocker Ratio - M8

S&S 132" Big Bore Cylinder Kit - Black/Highlighted Fins - M8

S&S 129" Big Bore Cylinder Kit - -107 M8 4.3/8 stroke

310-1231 132" Power Package Engine Performance Kit Oil Cool- Highlighted Fins - M8

310-1229 132" Power Package Engine Performance Kit water-cooled Black Highlighted Fins - M8

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