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FlowTech Long Tube Header, Black Paint 12100FLT

FlowTech Long Tube Header, Black Paint 12100FLT
FlowTech Long Tube Header, Black Paint 12100FLTFlowTech Long Tube Header, Black Paint 12100FLTFlowTech Long Tube Header, Black Paint 12100FLTFlowTech Long Tube Header, Black Paint 12100FLT
$448.99 ea
NEWARRIVING SOONEstimated Ship Date 07/21/2025 (If Ordered Today)1 Available from HOLLEY PERFORMANCE PRODUCTS as of 07/02/2025
Model: 4005965
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 1
STORE PICKUP
[More Info]
Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance.
Features:
  • Increased Exhaust Scavenging for Improved Performance
  • Leak Test For Max Performance
  • Mandrel-Formed Power Plenum
  • Leakproof O-Ringed Port Seals
  • Include All Mounting Hardware
Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.
Not compatible with manual transmission or C6 transmission
Installation Notes:
Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.
Not compatible with manual transmission or C6 transmission

Downloads:

Download Name File Size
12100-3901flt.pdf158.01KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
Ford Fairlane 500XL 1967 4.7L / 289 / V8
Ford Fairlane 500 1966 4.7L / 289 / V8
Ford Fairlane 500 1968 5.0L / 302 / V8
Ford Fairlane 500 1969 5.0L / 302 / V8
Ford Fairlane 500 1970 5.0L / 302 / V8
Ford Fairlane Base 1966 4.7L / 289 / V8
Ford Fairlane Base 1967 4.7L / 289 / V8
Ford Fairlane Base 1968 5.0L / 302 / V8
Ford Fairlane Base 1969 5.0L / 302 / V8
Ford Fairlane 1967 4.7L / 289 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Fairlane 1968 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Fairlane 1969 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Falcon Base 1966 4.7L / 289 / V8
Ford Falcon Base 1967 4.7L / 289 / V8
Ford Falcon Futura 1966 4.7L / 289 / V8
Ford Falcon Futura 1967 4.7L / 289 / V8
Ford Falcon 1966 4.7L / 289 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Falcon 1967 4.7L / 289 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Mustang Base 1969 5.8L / 351 / V8
Ford Mustang Base 1970 5.8L / 351 / V8
Ford Mustang Base 1971 5.0L / 302 / V8
5.8L / 351 / V8
Ford Mustang Base 1972 5.0L / 302 / V8
5.8L / 351 / V8
Ford Mustang Base 1973 5.0L / 302 / V8
5.8L / 351 / V8
Ford Mustang Boss 302 1971 5.0L / 302 / V8
Ford Mustang Boss 351 1971 5.8L / 351 / V8
Ford Mustang Boss 351 1972 5.8L / 351 / V8
Ford Mustang Grande 1970 5.8L / 351 / V8
Ford Mustang Grande 1971 5.0L / 302 / V8
5.8L / 351 / V8
Ford Mustang Grande 1972 5.0L / 302 / V8
5.8L / 351 / V8
Ford Mustang Grande 1973 5.0L / 302 / V8
5.8L / 351 / V8
Ford Mustang Shelby GT-350 1969 5.8L / 351 / V8
Ford Mustang Shelby GT-350 1970 5.8L / 351 / V8
Ford Mustang 1969 5.8L / 351 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Mustang 1970 5.8L / 351 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Mustang 1971 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Mustang 1972 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Mustang 1973 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Ranchero 500 XL 1967 4.7L / 289 / V8
Ford Ranchero 500 1967 4.7L / 289 / V8
Ford Ranchero 500 1968 5.0L / 302 / V8
Ford Ranchero 500 1969 5.0L / 302 / V8
Ford Ranchero 500 1970 5.0L / 302 / V8
Ford Ranchero 500 1971 5.0L / 302 / V8
Ford Ranchero 500 1972 5.0L / 302 / V8
Ford Ranchero 500 1973 5.0L / 302 / V8
Ford Ranchero Base 1966 4.7L / 289 / V8
Ford Ranchero Base 1967 4.7L / 289 / V8
Ford Ranchero Base 1968 5.0L / 302 / V8
Ford Ranchero Base 1969 5.0L / 302 / V8
Ford Ranchero Base 1970 5.0L / 302 / V8
Ford Ranchero Base 1971 5.0L / 302 / V8
Ford Ranchero Custom 1966 4.7L / 289 / V8
Ford Ranchero GT 1968 5.0L / 302 / V8
Ford Ranchero GT 1969 5.0L / 302 / V8
Ford Ranchero GT 1970 5.0L / 302 / V8
Ford Ranchero GT 1971 5.0L / 302 / V8
Ford Ranchero GT 1972 5.0L / 302 / V8
Ford Ranchero GT 1973 5.0L / 302 / V8
Ford Ranchero Squire 1970 5.0L / 302 / V8
Ford Ranchero Squire 1971 5.0L / 302 / V8
Ford Ranchero Squire 1972 5.0L / 302 / V8
Ford Ranchero Squire 1973 5.0L / 302 / V8
Ford Ranchero 1966 4.7L / 289 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Ranchero 1967 4.7L / 289 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Ranchero 1968 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Ranchero 1969 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Ranchero 1970 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Ranchero 1971 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Ranchero 1972 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Ranchero 1973 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Torino 500 1971 5.0L / 302 / V8
Ford Torino Base 1968 5.0L / 302 / V8
Ford Torino Base 1969 5.0L / 302 / V8
Ford Torino Base 1970 5.0L / 302 / V8
Ford Torino Base 1971 5.0L / 302 / V8
Ford Torino Base 1972 5.0L / 302 / V8
Ford Torino Base 1973 5.0L / 302 / V8
Ford Torino Brougham 1970 5.0L / 302 / V8
Ford Torino Brougham 1971 5.0L / 302 / V8
Ford Torino GT 1968 5.0L / 302 / V8
Ford Torino GT 1969 5.0L / 302 / V8
Ford Torino GT 1970 5.0L / 302 / V8
Ford Torino GT 1971 5.0L / 302 / V8
Ford Torino Squire 1969 5.0L / 302 / V8
Ford Torino Squire 1970 5.0L / 302 / V8
Ford Torino Squire 1971 5.0L / 302 / V8
Ford Torino 1968 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Torino 1969 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Torino 1970 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Torino 1971 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Torino 1972 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Ford Torino 1973 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Comet Base 1966 4.7L / 289 / V8
Mercury Comet Base 1967 4.7L / 289 / V8
Mercury Comet Base 1968 4.7L / 289 / V8
5.0L / 302 / V8
Mercury Comet Base 1969 5.0L / 302 / V8
Mercury Comet Base 1971 5.0L / 302 / V8
Mercury Comet Base 1972 5.0L / 302 / V8
Mercury Comet Base 1973 5.0L / 302 / V8
Mercury Comet 1966 4.7L / 289 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Comet 1967 4.7L / 289 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Comet 1968 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Comet 1969 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Cougar Base 1969 5.8L / 351 / V8
Mercury Cougar Base 1970 5.8L / 351 / V8
Mercury Cougar Base 1971 5.8L / 351 / V8
Mercury Cougar Base 1972 5.8L / 351 / V8
Mercury Cougar Base 1973 5.8L / 351 / V8
Mercury Cougar XR-7 1969 5.8L / 351 / V8
Mercury Cougar XR-7 1970 5.8L / 351 / V8
Mercury Cougar XR-7 1971 5.8L / 351 / V8
Mercury Cougar XR-7 1972 5.8L / 351 / V8
Mercury Cougar XR-7 1973 5.8L / 351 / V8
Mercury Cougar 1969 5.8L / 351 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Cougar 1970 5.8L / 351 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Cyclone Base 1968 4.7L / 289 / V8
5.0L / 302 / V8
Mercury Cyclone Base 1969 5.0L / 302 / V8
Mercury Cyclone Base 1970 5.0L / 302 / V8
Mercury Cyclone Base 1971 5.0L / 302 / V8
Mercury Cyclone CJ 1969 5.0L / 302 / V8
Mercury Cyclone GT 1970 5.0L / 302 / V8
Mercury Cyclone GT 1971 5.0L / 302 / V8
Mercury Cyclone Spoiler 1969 5.0L / 302 / V8
Mercury Cyclone Spoiler 1970 5.0L / 302 / V8
Mercury Cyclone Spoiler 1971 5.0L / 302 / V8
Mercury Cyclone 1968 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Cyclone 1969 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Cyclone 1970 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Montego Base 1968 4.7L / 289 / V8
5.0L / 302 / V8
Mercury Montego Base 1969 5.0L / 302 / V8
Mercury Montego Base 1970 5.0L / 302 / V8
Mercury Montego Base 1971 5.0L / 302 / V8
Mercury Montego Base 1972 5.0L / 302 / V8
Mercury Montego Base 1973 5.0L / 302 / V8
Mercury Montego GT 1972 5.0L / 302 / V8
Mercury Montego GT 1973 5.0L / 302 / V8
Mercury Montego MX Brougham 1970 5.0L / 302 / V8
Mercury Montego MX Brougham 1971 5.0L / 302 / V8
Mercury Montego MX Brougham 1972 5.0L / 302 / V8
Mercury Montego MX Brougham 1973 5.0L / 302 / V8
Mercury Montego MX 1968 5.0L / 302 / V8
4.7L / 289 / V8
Mercury Montego MX 1969 5.0L / 302 / V8
Mercury Montego MX 1970 5.0L / 302 / V8
Mercury Montego MX 1971 5.0L / 302 / V8
Mercury Montego MX 1972 5.0L / 302 / V8
Mercury Montego MX 1973 5.0L / 302 / V8
Mercury Montego Villager 1970 5.0L / 302 / V8
Mercury Montego Villager 1971 5.0L / 302 / V8
Mercury Montego Villager 1972 5.0L / 302 / V8
Mercury Montego Villager 1973 5.0L / 302 / V8
Mercury Montego 1968 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Montego 1969 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Montego 1970 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Montego 1971 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Montego 1972 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;
Mercury Montego 1973 5.0L / 302 / V8 Standard Header; Primary Tube Coll. Size 1.5x3 in.; Can Be Modified To Fit A.I.R. Fittings In Head; Will Not Fit C5 Trans.; Not Legal For Street Use;

Specifications:

Bolt Size 3/8-16 x 3/4, 3/8-16 x 3/4
CARB (California) Compliant No
Collector Diameter 3.00 inch
Emission Code 4
Engine Small Block Ford
Header Finish Black Paint
Header Style Long Tube
Part Type Exhaust Header
Primary Tube Dia. 1-1/2 inch
Product Type Headers
Proposition 65 www.P65Warnings.ca.gov
Tube Material Mild Steel

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