GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12
By A Mystery Man Writer
Description
Once upon a time, GMC created a V12 monster of an engine it called the Twin Six. It was massive, powerful, and not eco-friendly in the least.
Once upon a time, GMC created a V12 monster of an engine it called the Twin Six. It was massive, powerful, and not eco-friendly in the least.
Once upon a time, GMC created a V12 monster of an engine it called the Twin Six. It was massive, powerful, and not eco-friendly in the least.
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://images-stag.jazelc.com/uploads/theautopian-m2en/FFV12.jpg)
The GMC 'Twin Six' Is An Insane 11.5-Liter Four-Head V12 Meant To Fight Diesel Engines - The Autopian
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://i0.wp.com/www.curbsideclassic.com/wp-content/uploads/2012/06/GMC-V12-1960_GMC_V12_702cid.jpg)
The GMC Twin Six V12: 702 Cubes, 275 HP At 2400 RPM, 630 Ft. Lbs. At 1600 RPM - Curbside Classic
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://6066gmcguy.com/RapemPappy/rside3.jpg)
Powered by GMC Twin-Six V12
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://www.curbsideclassic.com/wp-content/comment-image/48043.jpg)
The GMC Twin Six V12: 702 Cubes, 275 HP At 2400 RPM, 630 Ft. Lbs. At 1600 RPM - Curbside Classic
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://www.enginelabs.com/image/2022/05/ask-the-expert-we-want-your-questions-for-canton-racing-products-2022-05-24_10-08-54_991936-310x207.jpg)
A Look Back at the 702ci GMC Twin-Six V12 Engine
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://i.ytimg.com/vi/Lp2aLFnIrfE/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLBPKyT_c4HoO2k9anMSbW12p3xcXw)
The Legend of GM's MASSIVE 11.5L V12 Engine
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://www.slashgear.com/img/gallery/why-stellantis-twin-turbo-i-6-engine-deserves-its-hurricane-name/intro-1703352503.jpg)
Alvin Reyes - SlashGear
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://hagerty-media-prod.imgix.net/2020/04/Cadillac-experimental-V-12-Engine-left-side-low-scaled-e1590410736290.jpg?auto=format%2Ccompress&ixlib=php-3.3.0)
Why GM's V-12 “Engine of the Future” never made it to production - Hagerty Media
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](http://speednik.com/files/2013/02/GMC-v12ad.jpg)
A Look Back at the 702ci GMC Twin-Six V12 Engine
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://blog.consumerguide.com/wp-content/uploads/sites/2/2018/03/Screen-Shot-2018-03-19-at-4.30.31-PM.png)
What was the GMC Twin Six?, The Daily Drive
![GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12](https://i0.wp.com/www.curbsideclassic.com/wp-content/uploads/2022/12/H-S-Kenworth-V12-close.webp?ssl=1)
Automotive History: Hall-Scott - Legendary Builder Of High-Power Gas Engines For Trucks, Buses, Cars, Boats, Airplanes And More - Curbside Classic
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