What is the purpose of the .064in manifold surface machining?

The .064 inch manifold surface machining ensures a precise and reliable seal between the cylinder head and the intake manifold. This helps prevent air leaks and maintain the correct air-fuel mixture for optimal engine performance.

Are these cylinder heads compatible with compression releases?

These cylinder heads are manufactured without compression release machining. If your application requires compression releases, you will need to consider a different model or consult with S&S Cycle for options.

What is included in this cylinder head kit?

This kit includes the S&S Cycle cylinder heads with a wrinkle black finish, featuring a 91cc combustion chamber and a .064 inch manifold surface. It is designed to work with the stock bolt pattern.

S&S Cycle 91cc Cylinder Heads Wrinkle Black 900-0993

Name: S&S Cycle 06-12 Dyna 91cc .064in Manifold Surface Cylinder Heads - Wrinkle Black
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-06-12-dyna-91cc-064in-manifold-surface-cylinder-heads-wrinkl-t14-664035
Price: 1875.48 USD
Availability: BackOrder

S&S Cycle 06-12 Dyna 91cc .064in Manifold Surface Cylinder Heads - Wrinkle Black

$1875.48

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 06-12 Dyna 91cc .064in Manifold Surface Cylinder Heads - Wrinkle Black

Key Features

Fits 2006-2012 Dyna models.
Features a 91cc combustion chamber volume.
Manifold surface is machined to .064 inches for a precise seal.
Utilizes the stock bolt pattern for easier installation.
Constructed from strong steel for reliability.
Finished in a durable wrinkle black for a custom look.

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Product Details

With a manifold surface machined to .064 inches, these S&S Cycle cylinder heads are built for precise sealing on your 2006-2012 Dyna. The 91cc combustion chamber volume is a key spec that influences compression ratio, and these heads are designed to work with the stock bolt pattern, making installation more straightforward. The wrinkle black finish not only looks sharp but also offers a durable coating for your engine.

These are well-built heads designed to be a solid option for those looking to rebuild or upgrade their engine's top end. The steel construction is strong and reliable, and the specific machining on the manifold surface helps ensure a good seal with your intake manifold, preventing leaks and maintaining proper air-fuel mixture. This kit comes with the cylinder heads, ready for installation, and the wrinkle black finish is a popular choice for a custom look.

When installing these heads, it's important to follow the manufacturer's recommended procedures for proper sealing and torque. While these heads are designed to work with the stock bolt pattern, always refer to the S&S Cycle installation instructions for any specific details or requirements. This kit is not CARB approved and cannot be shipped to California.