Austin Healey Anti-Roll Bar Polybush Kit 9/16in – Performance (BN1–BN2)

What is this anti-roll bar polybush kit?

This performance-grade polyurethane bush kit is designed for the front anti-roll bar (A.R.B.) fitted to early Austin Healey models using a 9/16-inch diameter bar. It replaces standard rubber bushes to reduce deflection and improve steering response.

Key benefits

• Reduced anti-roll bar deflection compared with rubber bushes
• More consistent bar location during cornering
• Improved steering response and front-end control
• Resistant to oil, fuel, moisture, and road contamination
• Maintains shape under repeated suspension movement

Will this fit my Austin Healey?

Yes, if you have a BN1 or BN2 fitted with a 9/16-inch front anti-roll bar. This kit is intended specifically for early Big Healey models.

• BN1
• BN2

Does not fit:

• BN4, BN6, BN7, BT7, BJ7, or BJ8 models
• Cars fitted with 5/8-inch, 3/4-inch, or 7/8-inch anti-roll bars
• Later conversions using larger-diameter bars

Quick check before ordering: a 9/16-inch anti-roll bar measures approximately 14.3mm.

What’s included in the kit?

• Performance-grade polyurethane anti-roll bar bushes
• Correct quantity to service one complete front A.R.B.

Technical details

• Material: Polyurethane (performance compound)
• Colour: Red
• Anti-roll bar diameter: 9/16-inch
• Environmental resistance: Oil, fuel, weather, and road dirt
• Compliance level: Reduced compared with touring-grade bushes

Installation & setup notes

Installation reuses the existing A.R.B. clamps and brackets and can be carried out using standard hand tools.

• Light lubrication recommended during fitting
• Confirm bar diameter before installation
• Final tightening should be carried out at normal ride height

A firmer transmission of road feel should be expected compared with touring-grade bushes.

Why choose the performance specification?

The performance compound is intended for drivers who want sharper steering response on early BN1 and BN2 cars. Compared with touring-grade A.R.B. bushes, it offers lower compliance and more consistent behaviour under load.

View Touring (Black) anti-roll bar polybush kit

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