What does MLS construction mean for this head gasket?

MLS stands for Multi-Layer Steel. This construction uses several layers of steel to create a strong, flexible gasket that can handle high pressures and temperatures, helping to prevent leaks.

Does this gasket set come with all the necessary hardware for installation?

This set includes two head gaskets, which are the primary components for sealing the cylinder heads to the engine block. It does not include additional hardware like head bolts or studs; those would need to be sourced separately if required for your rebuild.

What is the significance of the .040 inch thickness?

The .040 inch thickness refers to the gasket's compressed dimension. This is a standard size for many Shovelhead Big Twin engines, designed to work with a standard bore without altering compression ratios significantly.

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Twin Power 66-84 Shovelhead Big Twin Head Gasket Std Bore .040 MLS Replaces H-D 16770-66 Pr

Specifications

Brand: TwinPower
Part #: 043183
UPC: 887337317595

Twin Power 66-84 Shovelhead Big Twin Head Gasket Std Bore .040 MLS Replaces H-D 16770-66 Pr

Name: Twin Power 66-84 Shovelhead Big Twin Head Gasket Std Bore .040 MLS Replaces H-D 16770-66 Pr
Brand: TwinPower
SKU: twinpower-twin-power-66-84-shovelhead-big-twin-head-gasket-std-bore-040-mls-repl-t14-702518
Price: 69.62 USD
Availability: InStock

$69.62

Only 7 left in stock

Twin Power Shovelhead Big Twin head gasket set. .040 MLS, standard bore. Made in USA for maximum leak prevention.

Key Features

Fits 1966-1984 Harley-Davidson Shovelhead Big Twin models.
Multi-Layer Steel (MLS) construction for a durable, airtight seal.
Standard bore size with a .040 inch thickness.
Designed for maximum leak prevention in your engine's top end.
Replaces Harley-Davidson part number 16770-66.
Includes two head gaskets for one engine.

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Will this fit your vehicle?

Product Details

If you're rebuilding the top end of your Shovelhead Big Twin, getting a solid seal on your cylinders is crucial. This head gasket set from Twin Power is built to do just that, ensuring maximum leak prevention for your engine.

These aren't just any gaskets; they're made in the USA and constructed from Multi-Layer Steel (MLS) for a strong, reliable seal. The .040 inch thickness is standard bore, meaning they're designed to fit right without needing machine work for standard rebuilds. They replace the Harley-Davidson part number 16770-66, so you know they're made to spec for a wide range of Shovelhead models, including popular bikes like the FX Super Glide, FXST Softail Standard, and FLT Tour Glide.

This set includes two gaskets, enough for one engine. Getting a good seal here helps keep your compression where it belongs and prevents oil and coolant leaks, keeping your engine running smoothly.