What components are NOT included with this engine?

This long block engine package does not include the fuel and ignition systems. You will need to use your existing carburetor, air cleaner, and aftermarket ignition. Re-jetting of your current carburetor will be required.

Can this engine be used with an electronic fuel injection (EFI) system?

Yes, the crank and case are machined to accept a crank position sensor, making this engine EFI compatible. You will need to supply the necessary EFI components.

What is the warranty on this S&S Cycle engine?

All S&S V-Series engines, including this V124 Black Edition, come with a 2-year warranty from the manufacturer.

Specifications

Brand: S&S Cycle
Part #: 310-1158
UPC: 310-1158

S&S Cycle 84-99 BT Black Edition V124 Long Block Engine w/ 640 Cams & Chrome Billet Gear Cover

Name: S&S Cycle 84-99 BT Black Edition V124 Long Block Engine w/ 640 Cams & Chrome Billet Gear Cover
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-84-99-bt-black-edition-v124-long-block-engine-w-640-cams-chr-t14-662635
Price: 9281.97 USD
Availability: BackOrder

$9281.97

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle 84-99 BT Black Edition V124 Long Block Engine w/ 640 Cams & Chrome Billet Gear Cover.

Key Features

Fits 1984-1999 Big Twin motorcycles.
Specially machined cylinder heads allow use of stock length manifolds.
Includes 640 cams and a chrome billet gear cover.
Features premium S&S components like cylinder heads, valve springs, and forged rocker arms.
Crank and case are machined for crank position sensor compatibility with EFI systems.
Designed for faster replacement compared to a full engine rebuild.

This engine is designed for 1984-1999 Big Twin motorcycles. Please verify compatibility with your specific motorcycle model before purchase.

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About this part

Product Details

The S&S Cycle V124 Black Edition Long Block Engine starts with specially machined cylinder heads that allow you to use your stock length manifolds, making the swap into your 1984-1999 Big Twin motorcycle a more straightforward process. This engine is designed as an economical upgrade path for your Evo-powered bike, letting you reuse your existing carburetor, air cleaner, and aftermarket ignition system, which saves you both time and money compared to a full rebuild. You will need to re-jet your current carburetor to properly match the engine's new breathing capabilities.

Inside this well-built engine, you'll find premium S&S components throughout, including S&S cylinder heads, S&S valve springs, and forged rocker arms. The crank and case are machined to be EFI compatible, allowing for the installation of a crank position sensor if you plan to run an electronic fuel injection system. This long block assembly is designed to be a faster replacement than a complete engine rebuild, getting you back on the road sooner. All S&S V-Series engines are made in the USA and come with a 2-year warranty.

This engine package includes the V124 long block, 640 cams, and a chrome billet gear cover. Please note that this engine is not CARB approved and cannot be shipped to California.