Other products by HOLLEY
Item #: HOL6-504
Our Price: USD $11.23


Quick Overview

Seat Size: .110"
Type: Adjustable

Holley offers a number of needle and seat assemblies for its various carburetor models. The configuration of the needle and seat assembly and seat size depends on carburetor application, CFM size and type of fuel bowl used.Most Holley performance carburetors come equipped with a Viton-tipped needle. The Viton needle design is resistant to dirt and conforms to the needle seat for superior sealing. "Type" refers to the needle and seat design. The adjustable needle and seat design allows external float adjustment without removing the fuel bowl. Center hung fuel bowls use only the "adjustable" style needle and seat, as do model 4500 Dominator carburetors. Side hung fuel bowls have come in a variety of styles over the years and have used both the "“adjustable" and "non-adjustable" style needle and seats.

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