What is the bore size of this gasket?

This S&S Cycle cylinder head gasket has a bore size of 3.937 inches. This measurement is critical for ensuring a proper seal around the cylinder bore.

What is the thickness of this head gasket?

The thickness of this cylinder head gasket is .045 inches. This dimension is important for setting the correct compression ratio and ensuring a good seal between the cylinder head and the engine block.

Does this gasket include O-rings?

Yes, the manufacturer's description indicates that this gasket kit includes O-rings. These are typically used to seal exhaust ports or other specific areas on the engine.

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Specifications

Brand: S&S Cycle
Part #: 910-0465
UPC: 910-0465

S&S Cycle 3-7/8in -3.937in Cylinder Head Gasket

Name: S&S Cycle 3-7/8in -3.937in Cylinder Head Gasket
Brand: S&S Cycle
SKU: s-s-cycle-s-s-cycle-3-7-8in-3-937in-cylinder-head-gasket-t14-619279
Price: 104.03 USD
Availability: BackOrder

$104.03

On Backorder — Expected to ship by May 7, 2026

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

Key Features

Fits stock bolt patterns, including Twincooled® engines.
Features a .045 inch thickness.
Has a 3.937 inch bore size.
Designed for engine component replacement.

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About this part

Product Details

S&S Cycle is well-known for making performance engine parts for Harley-Davidson motorcycles. This cylinder head gasket is built to their standards for a solid seal. It's designed with a .045 inch thickness and a 3.937 inch bore to match stock bolt patterns, including for Twincooled® engines.

This gasket is intended for stock bolt patterns, ensuring it fits correctly where the original gasket was. The .045 inch thickness is a common spec that works well for many engine builds, and the 3.937 inch bore size is specific to certain Harley-Davidson models. It's a well-built component for keeping your engine running right.