S&S CYCLE SKU: T14-1020379

S&S Cycle Power Packs — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)

$3,497.95
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NOT SURE ABOUT FITMENT?

S&S Cycle Power Packs are complete piston sets engineered for Harley-Davidson engine rebuilds and performance upgrades. Built to S&S Cycle specifications for durability and reliable performance in stock and modified engines.

Features

  • S&S Cycle engineering
  • Engine rebuild ready
  • Harley-Davidson compatible

Specifications

  • Brand: S&S Cycle
  • Manufacturer Part #: 310-1391A
  • Category: Engine Components / Piston Sets - Powersports
  • Weight: 44.19 lb

Fitment

Fits Harley-Davidson engines. Consult S&S Cycle fitment charts or your engine builder to confirm compatibility with your specific displacement and model.

Frequently Asked Questions

What's included in a Power Pack?

Complete piston set with all necessary components for engine assembly. Verify your order quantity matches your displacement and cylinder count.

Do I need a machine shop to install these?

Yes — piston installation requires professional engine machine work. Do not attempt installation without proper equipment and expertise.

Will these work with my stock Harley heads and barrels?

Power Packs are designed for Harley engines but may require matching components. Consult S&S Cycle or your engine builder to confirm compatibility with your specific setup.

Are these for a complete rebuild or a top-end refresh?

These are full piston sets intended for complete engine rebuilds. For a top-end refresh, verify that existing block and case are within tolerance.

BRANDS&S Cycle
TYPEPiston Sets - Powersports
SKUT14-1020379
WEIGHT44.19 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
4 RATINGS
5★ 4
4★ 0
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Aug 28, 2023

Everything you expect from S&S

Have installed this kit on multiple bikes. S&S knows what they’re doing.

— BRETT M
✓ VERIFIED
Apr 13, 2022

100 kit is sick! 10/5/1 compression is perfect for the 585 cams. Not going to burn the tires unless you bounce it, but at 2.7 K it pulls like a freight train. Super fun! Thanks S&S!

— Anonymous
✓ VERIFIED
Mar 8, 2020

5 Stars

— Anonymous
✓ VERIFIED
Jun 6, 2021

I didn't get it yet,can't wait too get it in my bike, than ill leave a review

— Anonymous