GMC 637 engine
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GMC 637 engine
I think they came in the 1972 GMC cab overs. There around 5.12 bore by 3.75 stroke. Maybe 215 hp. But I am sure it could some how get souped up. I wonder if it could be installed in a nova easily. Anyone know about these?
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Re: GMC 637 engine
All I know about them is that they were big and HEAVY.
High quality metal, body and paint work
http://www.spiuserforum.com/index.php?t ... inia.9030/
http://www.spiuserforum.com/index.php?t ... inia.9030/
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Re: GMC 637 engine
You would be way ahead of the game by supercharging a small block!!
You can cut a man's tongue from his mouth, but that does not mean he’s a liar, it just shows that you fear the truth he might speak about you!
Re: GMC 637 engine
I watched a video on Youtube where a guy started one of these. These engines were used to power rear engined buses. The one he had was hooked to a transaxle.
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Re: GMC 637 engine
http://6066gmcguy.com/
https://www.macsmotorcitygarage.com/now ... c-inch-v8/
60-degree V8 based on the GMC V6/V12 architecture. The 637 replaced the 702 V-12, and was made in gasoline and diesel versions.
I hope you have VERY low-numerical gears in that car, and the biggest front springs on Earth to hold it up.
Not a practical swap.
https://www.macsmotorcitygarage.com/now ... c-inch-v8/
60-degree V8 based on the GMC V6/V12 architecture. The 637 replaced the 702 V-12, and was made in gasoline and diesel versions.
I hope you have VERY low-numerical gears in that car, and the biggest front springs on Earth to hold it up.
Not a practical swap.
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Re: GMC 637 engine
If nothing else you can use it to power a large kilowatt emergency generator for not only your house, but a few neighbors homes also, lol!
You can cut a man's tongue from his mouth, but that does not mean he’s a liar, it just shows that you fear the truth he might speak about you!
Re: GMC 637 engine
IIRC, both the V8 and the V12 were made concurrently. The V8 was used in trucks and buses because it was shorter. The V12 wouldn't fit in anything on the road, and was detuned and with smaller bores to run forever in stationery plants.
Jack Vines
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Obsolete Engineering
Studebaker-Packard V8 Limited
Obsolete Engineering
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Re: GMC 637 engine
Seems like a good powerplant for some Rat Rod type thing you’d see Jay Leno driving around.
Somewhat handy with a die grinder.