
Holley 6-521 Needle and Seat Assembly, Titanium
Holley designed this 6-521 Needle and Seat to properly control fuel flow into the float bowl. This adjustable assembly comes with a Titanium needle, compatible for use with Alcohol or additives (Benzine or Acetone). This needle design is very responsive to flow rate changes and has excellent sealing capabilities.
Replacing the Needle and Seat assembly as part of regular maintenance is critical to keep your carburetor at its peak potential on the street and dragstrip!
Holley 6-521 Needle and Seat Assembly Features:
- Recommended Carburetor Size: 750 CFM and higher
- Seat Size: 0.150 in.
- Needle Material: Titanium
- Adjustable: Yes
- Alcohol Compatible: Yes
- Body Material: Brass
- Gaskets Included: Yes
- Quantity: Sold individually
Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start to finish, Holley has the parts to make your dream a reality!
Original: $49.95
-65%$49.95
$17.48Holley 6-521 Needle and Seat Assembly, Titanium
Holley designed this 6-521 Needle and Seat to properly control fuel flow into the float bowl. This adjustable assembly comes with a Titanium needle, compatible for use with Alcohol or additives (Benzine or Acetone). This needle design is very responsive to flow rate changes and has excellent sealing capabilities.
Replacing the Needle and Seat assembly as part of regular maintenance is critical to keep your carburetor at its peak potential on the street and dragstrip!
Holley 6-521 Needle and Seat Assembly Features:
- Recommended Carburetor Size: 750 CFM and higher
- Seat Size: 0.150 in.
- Needle Material: Titanium
- Adjustable: Yes
- Alcohol Compatible: Yes
- Body Material: Brass
- Gaskets Included: Yes
- Quantity: Sold individually
Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start to finish, Holley has the parts to make your dream a reality!
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Description
Holley designed this 6-521 Needle and Seat to properly control fuel flow into the float bowl. This adjustable assembly comes with a Titanium needle, compatible for use with Alcohol or additives (Benzine or Acetone). This needle design is very responsive to flow rate changes and has excellent sealing capabilities.
Replacing the Needle and Seat assembly as part of regular maintenance is critical to keep your carburetor at its peak potential on the street and dragstrip!
Holley 6-521 Needle and Seat Assembly Features:
- Recommended Carburetor Size: 750 CFM and higher
- Seat Size: 0.150 in.
- Needle Material: Titanium
- Adjustable: Yes
- Alcohol Compatible: Yes
- Body Material: Brass
- Gaskets Included: Yes
- Quantity: Sold individually
Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start to finish, Holley has the parts to make your dream a reality!











