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Engine Buildups in progress Tell us what your latest project is, and post a few pics.

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Old 10-21-13, 12:59PM   #1
mdbomstad
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Default 1957 347

I am a new member but have been a guest for some time. I am rebuilding a 347 for my GMC. The block and crank are currently at the machine shop all looks good so far. I have been studying the heads and need some insight on what to do with them. I have read that the copper ????? that direct the water flow will not survive the hot tank. Does anyone know the procedure to remove them without damage? Does anyone know where to get replacements if necessary? Do you think it necessary to install guides and hardened seats in reverse flow heads? I want to keep the engine original so want to use the heads. Any insight will be appreciated.

Mike B.
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Old 12-01-15, 01:39AM   #2
gtofreek
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I know it's been a long time, but have you made any progress on this? I just love the 347. Brings back memories of high school, when I drove a 57 Pontiac to school.
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Old 03-04-17, 12:14PM   #3
mdbomstad
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Default 1957 347

The engine is assembled now. The flow ????? came out of the heads and they cleaned up very nice. Found a lot of parts sources and used a Pontiac tripower intake. Working on the body now. Hope to have running next spring.
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Old 03-04-17, 02:30PM   #4
gtofreek
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Very Cool! Right on.
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Old 03-04-17, 03:50PM   #5
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Cool!! Was that the original engine color?
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Old 03-04-17, 05:42PM   #6
mdbomstad
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The engine came from the GMC truck I am restoring. The intake came from a1957 Pontiac. The engine was GMC orange. The manifold was Pontiac blue.
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Old 03-04-17, 06:42PM   #7
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Very cool. I like knowing stuff like that, My friend has a 58 Pontiac wagon from Canada, has some weird cool stuff. I have been trying to buy it for years. He is one of those guys that sells nothing, but has not touched the car in 20 years.
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Old 03-06-17, 09:16PM   #8
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Pretty awesome!
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Old 03-09-17, 12:16AM   #9
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Is it a Manual Trans or does it use the venerable 4 speed Hydramatic trans?

There is a lot of good info on the web for the Hydramatic & how to build it like one of the old "Hydro stick" Transmissions.

If the truck has the 9.3" Pontiac/Olds rear in it
This company:
FABCRAFT METAL WORKS
http://fabcraftmetalworks.com/
They make parts & has parts available for the 57 thru 64 9.3" rear end.
The shop specializes in old Pontiac parts.
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