This Premium CapeSport aluminium oil sump is for Austin Healey 100/6 and 3000 BN4–BJ8 six-cylinder engines. It is UK-cast in LM25 alloy and CNC-machined, with machined sealing faces intended to support reliable gasket contact during installation.
Yes. This sump is for six-cylinder Big Healeys BN4 through BJ8.
If the car uses a non-standard engine build or modified oil pick-up arrangement, confirm clearance and pick-up positioning before final tightening.
Yes, the oil pump pick-up requires shortening to suit this sump.
Follow the supplied fitting instructions and confirm the pick-up sits correctly before the sump is fully installed.
Related gasket set: Oil Sump Gasket Set (BN4-BJ8).
This is a mechanical installation. Use the supplied instructions, check oil pump pick-up position after shortening, and confirm gasket alignment across the machined sealing faces. Clean mating surfaces and even tightening are important for consistent sealing.
This page covers the Premium CapeSport aluminium sump for BN4–BJ8. It combines UK casting with full CNC machining and includes the fitting kit, sump plug and instructions, so the key installation requirements are defined from the outset, including the oil pump pick-up shortening step.
Yes. It is for Austin Healey six-cylinder models BN4 through BJ8.
This includes 100/6 and 3000 applications within the BN4–BJ8 range.
It is UK-cast in LM25 alloy and fully CNC-machined.
That matters most at the sealing faces and critical mounting surfaces, where consistent machining supports predictable installation with the correct gasket set.
Yes. The oil pump pick-up needs shortening to suit this sump.
Use the supplied fitting instructions, then confirm the pick-up position and clearance before final tightening.
Yes. A sump plug is included.
The required fitting kit and fitting instructions are also included, so the installation hardware and guidance are supplied with the sump.
Use the BN4–BJ8 oil sump gasket set.
The correct related item is ENG666 Oil Sump Gasket Set (BN4-BJ8).
Yes. It includes drilled and tapped mounting points intended for fitting a sump baffle if required.
A baffle is not necessary for every use case, but the mounting provision is there for applications that need it.
The sealing faces are CNC-machined to support accurate gasket contact.
Final sealing still depends on correct gasket choice, clean mating faces, and even tightening during installation.
