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Needle & Seat NS585
Holley 1940, 1945, 6145 Needle & Seat NS585

Needle & Seat NS585

1 Review(s)
Your Price: $14.95
Overall length minus stem = 1.63"
Nut length = .87"
Orifice = .082"
Nut diameter = .62"
Thread diameter 1/2"
Part Number: NS585
Availability: In Stock
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Precision Fuel Control: Holley 1940 Needle & Seat Set (Later Type)

Restore the precision of your fuel system with this high-quality Holley 1-barrel needle and seat assembly. Designed specifically for the Holley 1940 carburetor, this set ensures accurate fuel levels in the bowl, preventing the flooding or starvation issues that plague aging carburetors.

Is This the Right Part for You?

Because there are two distinct needle and seat sets available for the Holley 1940, it is vital to verify your measurements before ordering. This specific unit is the Later Type design. If your current assembly matches the "long nut" profile and the 1.63" length, this is your perfect match.

Technical Specifications

Use these exact measurements to ensure compatibility with your 1940 casting:

Feature
Measurement
Overall Length (minus stem)
1.63"
Nut Length
0.87"
Nut Diameter
0.62"
Thread Diameter
1/2"
Orifice Size
0.082"
APPLICATIONS:
You must match your carburetor number to get the correct part.
MAKE
YEAR
MODEL
CYLS
BUICK
1969-75
250 Repl.Carb.
6
CHEVROLET
1968-76
3.8L 230", 4.1L 250" REPL CARB
6
FORD AGRICULTURE
INDUSTRIAL
I.H.C.
1973-74
258
6
I.H.C.
1975-80
196 3.2L
4
OLDSMOBILE
1968-76
250 (REPL CARBS)
6
PONTIAC
1968-76
230, 250 (REPL CARBS)
6
Click on Carb Number For Associated Parts.
CARBURETOR NUMBERS:
451944C91
451972C91
452017C91
D7J6-13
D7J6-9510-13
D7JL-B
E6JL-EA
R-4807
R-4807-1
R-6442
R-6442-1
R-6514
R-6514-1
R-6775
R-6775-1
R-6800
R-6831
R-6832
R-6864
R-7048
R-7161
R-7161-1
R-7161-2
R-7162
R-7558
R-7576
R-7576-1
R-7647
R-7648
R-7649
R-8216
R-8239
R-8638
R-8789
R7931A

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