No pulleys or manifold, only what you see in the photos.
It is A GMC V6-71 same as WEIAND 6 71 except the mounting is different. You would have to make / modify a manifold to fit or use it as spares if you have a 671.
Rotors and gears appear good, turns smoothly with no chips in the rotors.
If it was me, I would probably want to drop the end cases and double check before use ( but that's me!) You can get pulleys carb mounts, and alternative drive snouts, the only issue is the manifold. Cheers Col.
Don't wish to interfere but hopefully it may help. I have a 6v71 set up going on my small block Ford. Nigel at UK Blowers can make the manifold set up for these and also supply anything else that is necessary, pulleys, snouts, belts etc. They have a different mounting to a 6/71 because their original use was to sit within a V engine. There are a number of people using them over here very successfully.
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