Advance Headers A291-M – Toyota LandCruiser 80, 100 & 105 Series LS Chev V8 Conversion Headers

Advance Headers A291-M are Australian-made exhaust headers designed to suit Toyota LandCruiser 80 Series, 100 Series and 105 Series LS Chev V8 conversions using Marks 4WD Adaptors. These headers are suitable for manual and automatic conversions, including vehicles fitted with GM 4L60E and 6L80E automatic transmissions.

Manufactured from durable 409 stainless steel, the A291-M headers use an interference-style design to improve exhaust scavenging, throttle response and low to mid-range torque. They are ideal for standard or mildly modified LS-powered LandCruiser conversions where quality fitment, strength and reliable performance are important.

Key Features

• Australian-made
• Check availability before ordering
• Designed for Toyota LandCruiser 80 Series, 100 Series and 105 Series LS Chev V8 conversions
• Made to suit Marks 4WD Adaptors conversion applications
• Suitable for manual and 4L60E and 6L80E automatic gearboxes
• 409 stainless steel construction for strength and durability
• Interference header design for improved torque and throttle response
• 45mm primary pipes, 51mm secondary pipes and 63mm outlet size
• Suitable for standard and modified LS V8 engines

Construction

• Material: 409 stainless steel
• Primary Pipes: 45mm
• Secondary Pipes: 51mm
• Outlet Size: 63mm
• Design: Interference-style exhaust header design
• Part Number: A291-M

Vehicle Fitment

• Make: Toyota
• Model: LandCruiser 80 Series, 100 Series and 105 Series
• Engine Conversion: LS Chev V8 conversion
• Conversion Kit: Made to suit Marks 4WD Adaptors
• Transmission: Manual, GM 4L60E automatic and GM 6L80E automatic

Fitment Notes

• Designed specifically for LS Chev V8 conversion applications.
• Made to suit vehicles using Marks 4WD Adaptors.
• Suitable for both manual and automatic conversions.
• Professional installation is recommended.
• As with all engine conversion parts, final fitment may depend on engine mounts, gearbox choice, transfer case position, body lift, suspension setup and other conversion components.

What's Included

• 1 x Pair of Advance Headers A291-M

Recommended With

• Quality exhaust gaskets
• New exhaust flange bolts and hardware where required
• Custom exhaust system fabrication to suit the converted vehicle
• Professional installation by an experienced exhaust or 4WD conversion workshop

Warranty & Compliance

• These headers are designed for LS engine conversion applications.
• Professional installation is recommended.
• Check local registration, emissions and engineering requirements before installation.
• Conversion vehicles may require inspection or certification depending on state, territory or country regulations.

Frequently Asked Questions

What vehicle does Advance Headers A291-M suit?

Advance Headers A291-M are designed for Toyota LandCruiser 80 Series, 100 Series and 105 Series vehicles fitted with an LS Chev V8 conversion using Marks 4WD Adaptors.

Will these headers suit manual and automatic gearboxes?

Yes. These headers are listed to suit manual gearbox conversions as well as GM 4L60E and 6L80E automatic transmission conversions.

What material are these headers made from?

These headers are manufactured from 409 stainless steel, offering good durability and long service life for 4WD and conversion applications.

Are these headers Australian made?

Yes. Advance Headers are proudly manufactured in Australia and are well known for their quality fitment and performance.

Do these headers suit all LS engines?

These headers are designed for LS Chev V8 conversion applications using Marks 4WD Adaptors. Final suitability can depend on the engine, gearbox, mounts and conversion setup. Please contact us if you are unsure before ordering.

Do I need a custom exhaust system after fitting these headers?

In most LS conversion applications, a custom exhaust system or modified exhaust system will be required after the headers to suit the vehicle, engine conversion and customer requirements.

Do you ship to the USA?

Yes. Best Mufflers regularly ships exhaust systems and exhaust parts to customers throughout the United States.

Please note that import duties, tariffs, taxes, and customs clearance fees are not included in the product or shipping price. Once your order is processed and the applicable charges are calculated, we will send you a secure payment link to finalise the import duties and tariff charges before dispatch.

Customer Support

For phone orders, advice, or part enquiries – contact us: