V8 Engine Specialists & All Mechanical Repairs

We Service All Makes & Models. Qualified Vehicle Certifiers for Cars & Motorcycles.

Hydroplane Boats

Rivers Speed & Spares have had a long relationship with the Annihilator Race Team starting back in 1993.

Drag Racing

A One Stop Shop for all your needs from engine building, tuning, fabrication and chassis work.

Circuit Racing

We work on all types of vehicles and can design and fabricate to meet your requirements.  Let us help you build that vehicle you really want.

Hot Rods

e pride ourselves on turning out top quality workmanship on every job, from engine rebuilds, turn key rebuilds, modifications and also able to complete LVVTA certification on modified vehicles.



Grant is an authorised vehicle certifier with the LVVTA. Once a vehicle is modified from its original state or is a scratch built, it requires certification to ensure that it is safe to operate on the road, and comply with the legal safety requirements.

ACC & Enable

We are contract holders for Levels 1 and 2 vehicle modifications. Our goal is to provide vehicle modifications for clients who have been identified by ACC as requiring vehicle modifications to meet their injury related needs.

Latest Blog Posts

2019 – 2020 NZDRA Competition Class Season

2019 – 2020 NZDRA Competition Class Season

Drag racing is in the DNA of the Rivers family and now dad Grant and siblings Nicole and Adrian have each won a round of the 2020 NZ Drag Racing Championships in the same car. The Whanganui family lead the competition class of the nationals and added to their record...

Workshop Update

Workshop Update

Adrian Rivers has gone into business for himself operating ATR Automotive Servicing & Repairs Ltd based in the Rivers Speed & Spares Workshop. The workshop is getting a third lift installed and the machine shop has been extended and remodelled for better use....

NZDRA Nationals

NZDRA Nationals

Only the 3rd run for the Dragster this Season with a new Motor Combination the desire to set everything slowly meant we had yet to make a full power pass in the Car. The first pass a three quarter run by grant show a lot of promise. Ardians turn behind the wheel was...

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