Select Your Ride

1
2
3

S&S CYCLE Power Package - Gear Drive - Oil Cooled - Non-Highlighted Fins - M8 310-1059A

Part Number: 09040064
S&S CYCLE
(No reviews yet) Write a Review
SKU:
09040064
MPN:
310-1059A
Condition:
New
Availability:
Ships Same Business Day
Weight:
47.45 LBS
On Sale
MSRP: $3,695.95
Now: $3,326.36
Was: $3,695.95
— You save $369.59
Prop 65 Warning Prop 65 Warning cancer & reproductive harm Price Match Call for more info on price match does not include 3rd party ads

Description

The S&S Cycle Power Package delivers the displacement and precision engineering your M8 demands for serious power gains without compromising reliability. This bolt-on big bore kit transforms your 107" engine to 124" displacement using forged pistons and a meticulously engineered oil cooling system—all without case machining. Whether you're pushing track times or demanding peak performance on the street, this package provides the engineering foundation to support forced induction and high-RPM abuse.

  • Displacement: 107" to 124"
  • Bore diameter: 4.250"
  • Compression ratio: 10.5:1
  • Piston material: Forged
  • Installation: Bolt-on, no case work
  • Oil pump: Billet aluminum, precision machined
  • Pump finish: Blue anodized
  • Scavenge: Independent sections (flywheel/cam chest)
  • Debris protection: Magnetic pickup, dual screens
  • Relief valve: Adjustable, installed in-engine
  • Pushrods: S&S Quickee design
  • Pushrod tubes: Gloss black finish
  • Tappets: S&S precision units
  • Tappet cuffs: Hard-anodized billet aluminum
  • Case finish: Wrinkle black (non-highlighted)
  • Fitment: Harley M8 engines
  • MPN: 310-1059A
View AllClose

Specs

BORE SIZE IMPERIAL:
4.250'
CAM DRIVE TYPE:
GEAR
COLOR/FINISH:
NON-HIGHLIGHTED FINS
MODEL:
POWER PACKAGE
RIDING STYLE:
STREET
STYLE:
BIG BORE
TYPE:
ENGINE
DISPLACEMENT:
124'
PRODUCT NAME:
PERFORMANCE KIT
COLOR/FINISH:
WRINKLE BLACK
COMPRESSION RATIO IMPERIAL:
11.0:1
COOLING SYSTEM:
OIL COOLED
UNITS:
KIT
View AllClose

0 Reviews

View AllClose

Fitment

Fitment for S&S CYCLE Power Package - Gear Drive - Oil Cooled - Non-Highlighted Fins - M8 310-1059A

View AllClose

FREE Shipping on orders of $99 or more!


Commercial Accounts

We offer tax-free commercial accounts, providing businesses with significant savings and streamlined benefits.



Easy 30-Day Returns

We proudly offer 30-day easy returns, ensuring a hassle-free and convenient shopping experience for our customers.


You May Also Like

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER