1. Home
  2. twin six

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

$ 6.00

4.9 (379) In stock

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.

Powered by GMC Twin-Six V12

Yes, GMC made a V12 engine. And it was huge

DK) Car: The Definitive Visual History of the Automobile - Giles chapman library-Straight-fourtop speed-Sports car

Packard Twin Six Experimental Racer (1916) - Old Concept Cars

What was the GMC Twin Six?, The Daily Drive

GMPhotoStore - The GMC Twin-Six is the GM V12 engine you probably never heard of. Built with a specific 12 cylinder block and crankshaft, the Twin- Six used two sets of V6 pistons

Now Here's a Big Block: GM's 637 Cubic-Inch V8 - Mac's Motor City GarageMac's Motor City Garage

Powered by GMC Twin-Six V12

2025 BMW X5: Price, Review, Photos (Canada)