1972 Arctic Cat EXT 440

What was your intended objective when you started the build?

I really wanted to bring back to life, what I think is the baddest sled of all time.

What motivated you to start your project?

It started with seeing the chassis hanging on the wall of a barn I was buying sled parts in. When I saw the chassis I bought it and immediately started looking for all the pieces to put it back to what it should have been.

What was the most unique and creative thing you did to the sled?

The most creative thing I did to the sled was the engine. I shoehorned a 500cc spirit free air with 1975 arctic cat z exhaust pipes into the sled.

What are you most proud of?

I’m most proud that all the paint on the sled is original.

What do other people say about your snowmobile?

At the vintage shows, the people who know what it is, love seeing an old race sled that looks this original.

4 Comments

Rima Vitolas says:

February 6, 2021 at 2:32 pm

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Lakendra Roark says:

February 9, 2021 at 8:45 pm

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Glen Mallory says:

February 2, 2024 at 5:17 pm

440 T1A race engine was about 60 hp tops. If you inserted the. 5000 six port off any 1978 to 1981 El Tigre , even with the potential z pipe mismatch you gained at least 5 hp and a lot more torque.

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Glen Mallory says:

February 2, 2024 at 5:37 pm

That 500 mill should have more power than the old T1A race engine. Nice job.

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Submitted by: Cody M

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Specifics

Classification: Wild

Make, Model & Year: 1972 Arctic Cat EXT 440

Fondly known as: EXT

Time spent: many

Snowmobile cost: 500

Money spent: 5000

Engine: Spirit 500cc free air, 70hp

Intake: twin 34mm mikunis

Exhaust: 1975 Arctic Cat Z factory pipes

Drivetrain: Arctic Cat Hex clutch with some ramp work, all other drivetrain is original ext.

Tunnel/Chassis Modifications: Factory

Suspension: Factory

Brakes: Factory Kelsey Hayes hydraulic brake.

Finish – Paint: Factory original 1972

Accessories: None