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GMC V6 and V12 Engines Engine repair and rebuilding

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  #1  
Old September 22nd, 2022, 01:03 AM
Mike Caldwell Mike Caldwell is offline
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Default What's this do?

OK, it's a riser block for a two-barrel carb off my 351 "Machine shop orphan."

Didn't have one on my 401 out of a New Idea harvester. Does it enhance drivability, etc?

Trying again to post pix
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File Type: jpg carb block 2.jpg (308.6 KB, Multiple views, 2 clicks)

Last edited by Mike Caldwell; September 23rd, 2022 at 12:24 AM.
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  #2  
Old September 22nd, 2022, 01:26 PM
James James is offline
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Default Re: What's this do?

Would need a pictures to know what you are talking about.
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Old September 22nd, 2022, 02:53 PM
lizziemeister'sV6 lizziemeister'sV6 is offline
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Default Re: What's this do?

The spacer under the carburator increases low end torque - such as when a truck engine is when pulling from a low rpm throttle position. Equipment like the Uni-System farm unit was basically held at constant rpm during operation. Uni -System built by New Idea had numerous machinery applications that could be changed as the need arose - from chopping corn silage, picking cotton and other tasks. Much like today's modern combine does by switching header platforms.
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