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Live2026-09-12 08:21 UTC+6 todayUpdated

Mamut Racing's Diesel Drag Truck Carries on Mack Trucks Family Legacy

Hector 'Mamut' Rivera races a modified Mack Granite with a custom chassis, honoring a family tradition of driving Mack trucks.

Engine horsepower
1,000
Truck model
Mack Granite

What Happened

Hector 'Mamut' Rivera, a second-generation truck driver from Florida, founded Mamut Racing in 2005. His loyalty to Mack Trucks spans generations: his grandfather and father both drove Macks, and Rivera insists no other brand is allowed in his shop. He recalls his childhood in Puerto Rico, where Mack trucks were a common sight, and his father bought the first orange Mack on the island in 1979.

Rivera built a race truck from a modified Mack Granite, using a 1969 Mack RL700 aluminum frame and a handmade chassis approved by the NHRA. He customized the vehicle in-house, chopping the cab to save weight. The truck runs on diesel only, with twin turbos and a 1,000-horsepower engine.

When I drive a Mack, I feel it inside, and I don’t get that feeling with other brands.
Hector 'Mamut' Rivera
Engine output

1,000horsepower

Twin-turbo diesel engine in Mamut's race truck

Why this matters

The story shows how deep brand loyalty can drive custom vehicle building and preserve family heritage in the trucking industry.

Terms in This Story

EV
Electric vehicle, a vehicle powered fully or partly by electricity.
ICE
Internal combustion engine, the conventional petrol or diesel engine type.
Read Original: Mack Trucks, Inc.

Summarised from the linked release; details can be imperfect — always verify against the original source.