S&S Cycle Cylinder Head Gasket Bore Thick

S&S Cycle cylinder head gaskets are engine sealing gaskets for V-twin motorcycle engines. They are offered in a range of bore diameters and thicknesses. The head gasket seals the joint between the cylinder and cylinder head. It keeps combustion pressure in the chamber and keeps oil and coolant passages sealed. Choose the bore and thickness option that matches your cylinder and head setup.

Key Features:

• Made by S&S Cycle in Viola, Wisconsin, a long-established V-twin performance brand
• Designs include graphite-based composite gaskets with a steel core and stainless steel fire ring, and multi-layer steel (MLS) types, depending on the part number
• Fire ring construction helps hold the seal under combustion pressure
• Anti-stick coating on many versions makes installation and later service easier
• Offered in multiple bore and thickness options for stock and performance builds
• Thickness affects the clearance between piston and head, which influences combustion chamber turbulence and flame travel

Installation Notes: Check that the gasket fits the bore and does not hang into the bore or combustion chamber. Follow the S&S instruction sheet for your gasket type, including the head bolt torque sequence and break-in procedure.

Use these head gaskets for an engine rebuild, a big-bore upgrade, or a performance build that needs a reliable cylinder head seal.