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129 Power Package for M8
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  • 129 Power Package for M8

129" Power Package for M8

€4,702.68
€4,232.41 Save 10%
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Bolt-on big-bore kit to convert an M8 107" to 129" without case machining. Includes 4.32" cylinders and forged pistons (CR 11.0:1), anodized S&S pump/plate, service plugs, separate oil scavenge sections, pickup screens and debris magnet, increased oil flow, adjustable valve, Quickee pushrods, lifters, S&S 550 rockers and camshafts, high-performance springs up to 0.605", and all gaskets, bearings and fasteners included. Made in the USA.
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  • Big-bore bolt-on kit that increases displacement from 107" M8 to 129" without requiring case machining
  • Set of cylinders with a 4.32" bore fitted with forged pistons, offering an 11.0:1 compression ratio
  • S&S oil pump and cam plate assembly with a blue anodized finish
  • Removable access plugs for oil passages, facilitating maintenance
  • Separate, independent oil scavenging systems for the crankcase and cam chest
  • Debris screen in each of the two pickup inlets to protect the circuit
  • Integrated magnet in the cam case to capture particles and prevent them from reaching the oil pump
  • Increased oil flow capacity on both the feed and return circuits
  • Adjustable relief valve, accessible and tunable once the kit is installed in the engine
  • Quickee pushrods supplied for high-performance valvetrain operation
  • Premium S&S tappets included for enhanced durability and optimized operation
  • S&S machined aluminum rockers, black-anodized and heat-treated for increased hardness
  • S&S 550 camshafts specially designed for big-bore applications
  • S&S valve springs compatible with cam profiles offering up to 0.605" of lift
  • Single-wire high-performance tapered spring included for high-rpm stability
  • All gaskets, bearings, and fasteners required for installation are included in the kit
  • Made in the USA
S&S CYCLE
09040158
4 Items

Data sheet

Taux de compression
11,0:1
Système de refroidissement
Refroidi par huile
Type arbre à cames
Engrenage
Marque
S&S CYCLE
Référence fournisseur
310-1227C
Caractéristiques
Tubes de tiges de culbuteur noirs
Couleur/finition
Lamelles accentuées, Noir Wrinkle
Modèle
Power Package
Nom du produit
Kit Performance
Type
Moteur
Unités
Kit
Alésage
4,320"
Cylindrée
129"
Longueur de la course
4-3/8"
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