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Needle & Seat Holley 4000 - NS507
Needle & Seat Holley 4000 - NS507

Needle & Seat Holley 4000 - NS507

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Your Price: $9.95
Part Number: NS507
Availability: In Stock
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Holley 885, 1901, 4000 needle & seat. There are more than 1 needle & seat for this carburetor. Compare your carburetor number.

Your carburetor may have a seat that pushes in rather than threading, this seat will work in its place, install it by pressing in just like you would if it didn't have threads.

APPLICATIONS:

MAKE
YEAR
MODEL
CYLS
TYPE
FORD TRUCK
1952-55
256, 279, 317
8
1901
FORD TRUCK
1952-55
256, 279, 317
8
1901
FORD/MERCURY
1956
292, 312 (INC POLICE SPECIAL)
8
4000
FORD/MERCURY
1957
312 (2 CARBS)
8
4000
I.H.C.
1952-74
372, 406
8
885
LINCOLN IND
1956
368
8
4000

CARBURETOR NUMBERS:

R-3018A
R-4327-1A
R-4327A
R-4328-1A
R-4328A
R-6397-1A
R-6397-2A
R-6397A
R-6437-1A
R-6437A
R-6625A
R-6804
R-6805A
R-938-1A
R-938-2A
R-938-3A
R-939-1A
R-939A
R-958A
R-959A

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