Austin Healey 100M Parts & Upgrades

Most listings cover Le Mans-spec 100M and late-BN1 to BN2 cars. Each product page clearly states compatibility and any exclusions for earlier or non-louvered models.

The defining features include a louvered aluminium bonnet with strap, H6 carburettors with cold-air box, a high-compression piston set, and the 140 MPH Le Mans speedometer. Every item on this page reflects the original Le Mans tuning package or its factory-approved components.

Yes—these parts are frequently chosen for faithful Le Mans conversions. While some require additional fittings or machining (for example, bonnet straps or carburettor assemblies), all are designed for period-correct fitment and geometry.

Most fittings use standard workshop tools, though precise alignment of components such as pistons or manifolds benefits from an AH Spares piston-ring compressor or equivalent. Each product page notes when extra tools or fixtures are recommended.

All parts listed here are newly manufactured to original specification, unless specifically stated in the product description. Some parts like the louvered bonnet are made exclusively for us by our sister company, A H Panels for accuracy, durability, and correct finish.

The terms are often used interchangeably. Factory 100M cars had officially approved Le Mans modifications, while “Le Mans-style” typically refers to the same parts fitted during restoration or tuning. Functionally, the components are identical.