The GMC 'Twin Six' Is An Insane 11.5-Liter Four-Head V12 Meant To

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The GMC Twin Six is the monstrous 11.5-liter all-American gasoline-powered V12 that you need to know about.

1935 GMC Rat Rod with a 702 ci Twin Six V12 – Engine Swap Depot

Powered by GMC Twin-Six V12

A Look Back at the 702ci GMC Twin-Six V12 Engine

Only One New Car In America Actually Sold For Under $20,000 Last Month - The Autopian

Powered by GMC Twin-Six V12

Only One New Car In America Actually Sold For Under $20,000 Last Month - The Autopian

A Look Back at the 702ci GMC Twin-Six V12 Engine

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Only One New Car In America Actually Sold For Under $20,000 Last Month - The Autopian

The GMC 'Twin Six' Is An Insane 11.5-Liter Four-Head V12 Meant To Fight Diesel Engines - The Autopian

Is it possible to have a partial forced induction engine? E.g only turbocharging 2 cylinders on an inline 4. - Quora

GM's Final V12 Was an Obscure 11.5-Liter Truck Engine From the 1960s

Flashback Friday: GMC's Monster 702ci V12 “Twin-Six” engine

Commercial Vehicles Archives - The Autopian