Hedman Hedders 88666 64-73 Mustang Headers, HTC
Hedman Hedders 88666 64-73 Mustang Headers, HTC
Hedman Hedders

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#41888666

Hedman Hedders 88666 64-73 Mustang Headers, HTC

  • 1964-73 For Mustang, 351W Engine Swap Headers
  • 1-5/8 In. Full-Length Tube Design
  • 3 In. Collector
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$659.99

/set

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Product Summary

Long Tube Header Tube Type, Oval Exhaust Port Shape

  • 1964-73 For Mustang, 351W Engine Swap Headers
  • 1-5/8 In. Full-Length Tube Design
  • 3 In. Collector
  • Standard-Duty Model- HTC Polished-Silver Ceramic Coated
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Key Specs

MFG. Part #88666
Header Tube TypeLong Tube
Exhaust Port ShapeOval
Primary Tube Diameter1-5/8"
Material TypeMild Steel
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Need To Know

Made to Order

This custom item will ship when completed

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Hedman Hedders 88666 Details

Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing Ford Mustang headers for nearly as long as Mustangs have been on the road. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your exhaust system to bolt up to these 351W engine swap headers, even if it is not perfectly aligned with the header collectors.

These HTC coated, LONG-TUBE headers are designed specifically for swapping a 351W engine into (non-factory 351W equipped) 1964-73 Ford Mustang, Falcon, or '66-73 Ranchero, Torino. The engine must be centered between the framerails. These headers fit both automatic and manual transmissions, but won't work with 4 speed top-loader tranmissions, and clutch and shift linkage may be required. The smooth 1-5/8 in., oval port tube design tucks in tight to clear shock towers, and provide excellent flow to let your 351W engine breathe better, and produce excellent low-end torque and horsepower.

Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.

Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty. These headers have a high temperature, POLISHED-SILVER ceramic finish that resists corrosion, and can withstand temperatures up to 1400 degree F. This finish is covered by a 5-year factory warranty, in addition to Hedman's standard lifetime header warranty.

Features

  • 1964-73 For Mustang, 351W Engine Swap Headers
  • 1-5/8 In. Full-Length Tube Design
  • 3 In. Collector
  • Standard-Duty Model- HTC Polished-Silver Ceramic Coated

Application

  • 1969-1973 Ford Mustang CID 351
  • 1970-1972 Ford Mustang Base CID 351 Naturally Aspirated GAS
  • 1969-1973 Ford Ranchero 500 CID 351 Naturally Aspirated GAS
  • 1971 Ford Torino 500 CID 351 Naturally Aspirated GAS
  • 1969-1970 Ford Torino Base CID 351 Naturally Aspirated GAS
  • 1972-1973 Ford Torino Base CID 351 Naturally Aspirated GAS

Specs

Manufacturer Specs:

TUBE DIAMETER1-5/8 in.
TUBE STYLELong Tubes
AIR CONDITIONINGYes
AUTOMATIC TRANSMISSION - COLUMNNo
AUTOMATIC TRANSMISSION - FLOORYes
MANUAL TRANSMISSION - COLUMNNo
MANUAL TRANSMISSION - FLOORYes
POWER STEERINGYes
COLLECTOR ATTACHMENT3 in.
COLLECTOR DIAMETER3 in.
COLLECTOR SIZE3 in.
COLLECTOR STYLEBALL and SOCKET Style (Gasketless)
REDUCER OUTLET SIZE2-1/2 in.
EXHAUST SYSTEM DIA2-1/2 in.
CONTENTSHeader(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
FINISHHTC Polished Silver Ceramic-Metallic
FINISH TYPEHTC SILVER (polished) Ceramic-metallic Coating
FLANGE STYLEStandard
FLANGE THICKNESS1/4 in. with 5/16 in. collector ring flange.
HEADER STYLELong Tube
NOTES64-73 Ford Mustang 351W
MATERIALMild Steel
TUBE DESIGNStandard
TUBE LENGTHLong Tubes
TUBE MATERIAL THICKNESS16g
TUBE SIZE1-5/8 in.
WITH AIR SYSTEMNo
WITH EGRNo
EONo
WELD-UPNo
TUNEDNo
BOLTS/STUDS INCLUDEDYes
CATALYTIC CONVERTERS INCLUDEDNo
CROSSOVER PIPE INCLUDEDNo
GASKET OR SEAL INCLUDEDYes
HEADER FASTENERS INCLUDEDYes
INSTALLATION HARDWARE INCLUDEDYes
MOTOR MOUNTS INCLUDEDNo
MOUNTING HARDWARE INCLUDEDYes
REDUCERS INCLUDEDYes
Y-PIPE INCLUDEDYes
QUANTITYSold as a pair.
PRIMARY TUBE GAUGE16g
PRIMARY TUBE DIAMETER IN1.625 in.
PACKAGE CONTENTSHeaders, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
HEADER MATERIALMild Steel
HEADER FINISHHTC Polished Silver Ceramic-Metallic
CYLINDER HEAD PORT SHAPEOval
CYLINDER HEADStock Profile Heads
HEADER CONSTRUCTIONMILD STEEL- Standard-Duty
REPLACEMENT GASKET41827770
REPLACEMENT HEAD FLANGE GASKET41827770
HEADER PORT SHAPEOval Port
PORT SHAPEOval
COLLECTOR BOLTS INCLUDEDYes
AIR CONDITIONING NOTESEngine Swap
O2 PROVISION221. Engine must be centered between frame rails.
Bracket For Fords External Slave Cylinder StyleFord Windsor Block (W)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.
CA Prop 65
CARB warning

Hedman Hedders 88666 Specifications

KEY SPECS
MFG. Part #88666
BrandHedman Hedders
Header Tube TypeLong Tube
Exhaust Port ShapeOval
Primary Tube Diameter1-5/8"
Material TypeMild Steel
ColorSilver
Weld-UpNo
Collector Diameter3 Inch
FinishPolished
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedYes
Collector Reducer Exit Diameter2.5"
GENERAL
Sold in QuantitySet
Collector Length3"
Flange Thickness0.25"
TunedNo
Crossover Pipe IncludedNo
Primary Tube Gauge16-gauge

Questions & Answers

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Fitment

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

  • Ford 351W

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