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- - Rare GMC 637 V-8 Toro-Flow Diesel (https://67-72chevytrucks.com/vboard/showthread.php?t=804209)

C10 - C90 Bill

04-11-2020 11:05 PM

Rare GMC 637 V-8 Toro-Flow Diesel

This one is Marine, but a good example of a 637 Diesel:

You Tube

Bob B.

04-12-2020 01:52 AM

Re: Rare GMC 637 V-8 Toro-Flow Diesel

Nice, thanks for posting! I think more 637 Toroflows ended up in boats than trucks.

sweetk30

04-12-2020 11:02 AM

Re: Rare GMC 637 V-8 Toro-Flow Diesel

hate to even say this but sounds a lot like a 6.9 or 7.3 ih diesel when its running . :lol:

Bob B.

04-12-2020 02:00 PM

Re: Rare GMC 637 V-8 Toro-Flow Diesel

A little bit, but Toroflows have their own unique sound. We have a running 478 Toroflow bus at a museum I work at.

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