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![Porsche 917 flat 5.4-litre 12-cylinder twin-turbo engine. Photo James Herne [864 x 641] : r/MachinePorn](https://external-preview.redd.it/3aq6T2lUmNU94kbFhJINVN_NycdEBqGX_IlJ1BPYiVk.jpg?auto=webp&s=c6306f784b1c1ec7b9ec8468192de7bda5062dfb "Porsche 917 flat 5.4-litre 12-cylinder twin-turbo engine. Photo James Herne [864 x 641] : r/MachinePorn")
Porsche 917 flat 5.4-litre 12-cylinder twin-turbo engine. Photo James Herne [864 x 641] : r/MachinePorn
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