6066 (1960-1966) GMC Truck Club

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- - What's this do? (https://6066gmcclub.com/showthread.php?t=51429)

Mike Caldwell

September 22nd, 2022 12:03 AM

What's this do?

1 Attachment(s)

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

James

September 22nd, 2022 12:26 PM

Re: What's this do?

Would need a pictures to know what you are talking about.

lizziemeister'sV6

September 22nd, 2022 01:53 PM

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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