11/06/2026
HOLDEN V8 OWNERS, THE WAIT IS OVER.
After months of development, testing, and refinement, our new Holden 304–308 Serpentine Kits are now available for pre-order.
Developed using everything we’ve learned from our Ford range, these systems combine heavy-duty billet construction, premium hardware, and our signature eccentric idler design.
Engineered to improve belt control, reduce belt harmonics, and minimise belt slap across the RPM range, the result is improved reliability, increased belt life, and a cleaner engine bay.
Our initial release includes a range of Holden serpentine kits designed to suit a variety of applications, with additional air conditioning and power steering configurations already in development.
To celebrate the launch, we're offering a limited number of pre-order allocations at a special discounted rate.
Shipping is expected to commence in late July.
View the range and secure yours today: https://www.unrivaledengineering.com/ur-holden