Automobiles

GMC's Remarkable Twin Six Engine: The Story Behind General Motor's Monstrous V12

GMC's huge Twin Six V12 gas engine was made to take on its diesel counterparts, powering fire trucks and farm machines, but it didn't stay on the market long.

SlashGear Auto

published: Mar 27, 2025

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GMC's huge Twin Six V12 gas engine was made to take on its diesel counterparts, powering fire trucks and farm machines, but it didn't stay on the market long.

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Cars

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