Cliff's Quadrajet Parts and Rebuild Kits

Quadrajet Problem Solving => Dialing in your rebuilt Quadrajet carburetor => Topic started by: TravisUT on February 06, 2026, 07:51:11 PM

Title: Float Height
Post by: TravisUT on February 06, 2026, 07:51:11 PM

What is the correct float height for carb 17080212 with 0.135" seat and brass float? Using with a mechanical fuel pump, a pressure regulator set to 5-5.5 PSI, mounted on a 454 street/stock setup.

Title: Re: Float Height
Post by: Kenth on February 07, 2026, 05:19:45 AM

Rochester never used brass floats for any Quadrajet, with the original type nitrophyl float the setting is 3/8".

Title: Re: Float Height
Post by: TravisUT on February 07, 2026, 07:28:43 AM

Thank you. The float has a brassy color, so I assumed it was brass; I have no idea! 😁

Title: Re: Float Height
Post by: 77cruiser on February 07, 2026, 11:10:19 AM

It could be brass the aftermarket sold them.

Title: Re: Float Height
Post by: Cliff Ruggles on February 10, 2026, 03:22:02 AM

NEVER use a brass float in a Quadrajet.  They do not produce the same fuel level as the far superior nitrophyl floats and since 2005 the brass floats are made in Taiwan and will leak at the soldered joints and sink......