Plymouth Valiant

The Slant-6 engine, tilted 30 degrees, allowed a lower center of gravity and better engine bay packaging. The engine became known for its bulletproof durability and strong mid-range torque—ideal for tough rally conditions.

• 1963 Ampol Trial (Australia) — Valiants finished strongly in one of the longest endurance rallies in the world, praised for mechanical toughness and interior comfort.
• 1964 Mobilgas Trial — Multiple Valiants entered and finished across harsh Australian terrain, competing in production sedan categories.
• 1965 Southern Cross Rally — Entered in touring class with privateer entries, showing surprising pace over long mixed-surface routes.

While not a factory-backed rally icon, the Valiant earned respect in the Southern Hemisphere’s endurance events, where reliability was paramount.

The Valiant’s handling was stable rather than sharp, with soft suspension suited to rough roads. The Slant-6 delivered smooth and dependable power, and its rugged drivetrain tolerated extreme abuse.