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Hedman Tight Tubes Street Rod Headers 78503 Headers, Rod, Block Hugger, Steel, Black Ceramic Coated, Dodge, Plymouth, Pair

SKU: HED78503

Headers

Hedman Tight Tubes Street Rod Headers 78503 Headers, Rod, Block Hugger, Steel, Black Ceramic Coated, Dodge, Plymouth, Pair

SKU: HED78503

Headers
A$1,552.53
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

IMPORTANT NOTICE: These headers require the use of a mini starter, see the "Suggested Parts" tab. Modification to the shifter linkage may be required.

Hedman Tight Tubes offer the lowest profile header collector available. Chosen by professional car builders and seasoned gearheads, with Hedman's innovative 4-into-1 Tight Tubes the collector tucks the header tubes and hook-ups against the engine block for more component clearance than ordinary street rod headers. And, the larger volume collector design provides exhaust flow that surpasses standard block hugging designs. Available in mild steel with 16-gauge header tubes uncoated and coated. The HTC silver and Black Maxx ceramic-metallic coatings offer superior heat insulation and anti-corrosion properties to protect your "Hedder" investment and retain more heat inside the header tubes for increased exhaust velocity and improved scavenging. For tight engine compartments, choose Hedman Tight Tubes—the headers that go where ordinary headers won't.

Part Type

Headers

Data: v4.2 - Upd: 2026-10-14 09:16:33

Specifications

Product Attributes - Brand
Hedman Hedders
Product Attributes - Manufacturer's Part Number
78503
Product Attributes - Part Type
Headers
Product Attributes - Product Line
Hedman Tight Tubes Street Rod Headers
Product Attributes - UPC
732611785037
Product Attributes - Header Style
Block hugger
Product Attributes - Header Material
Steel
Product Attributes - Primary Tube Outside Diameter (in.)
1 5/8 in.
Product Attributes - Header Color
Black ceramic coated
Product Attributes - Flange Style
Standard
Product Attributes - Weld-Up
No
Product Attributes - Cylinder Head Port Shape
Rectangular
Product Attributes - Collector Attachment
3-bolt flange
Product Attributes - Collector Diameter (in.)
2.50
Product Attributes - Collector Reducers Included
Yes
Product Attributes - Collector Reducer Exit Diameter
2.500 in.
Product Attributes - Tuned
No
Product Attributes - Primary Tube Gauge
16-gauge
Product Attributes - Flange Thickness (in.)
0.31 in.
Product Attributes - Bolts/Studs Included
Yes
Product Attributes - Gaskets Included
Yes
Product Attributes - Crossover Pipe Included
No
Product Attributes - Catalytic Converter(s) Included
No
Product Attributes - Motor Mounts Included
No
Product Attributes - Transmission Mount Included
No
Product Attributes - Quantity
Sold as a pair.
Product Attributes - Notes
These headers require the use of a mini starter, see the "Suggested Parts" tab. Modification to the shifter linkage may be required.

Reference Information

Brand Name/s Hedman Hedders
StreetFX SKU hed78503
SFX Item ID 5069855
Supplier Item Code 5069855
Manufacturer SKU 78503
Manufacturer UPC 732611785037

Compatibility

Application Data
  • MakeDODGE
    ModelCHALLENGER
    SubmodelBASE
    Beginning Year1970
    Ending Year1973
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.6L/340
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHALLENGER
    SubmodelBASE
    Beginning Year1970
    Ending Year1974
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.2L/318
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHALLENGER
    SubmodelBASE
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHALLENGER
    SubmodelR/T
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.6L/340
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHALLENGER
    SubmodelRALLYE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.2L/318
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHALLENGER
    SubmodelRALLYE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.6L/340
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHALLENGER
    SubmodelRALLYE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHALLENGER
    SubmodelT/A
    Beginning Year1970
    Ending Year1970
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.6L/340
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    Submodel500
    Beginning Year1969
    Ending Year1971
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.2L/318
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    Submodel500
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.6L/340
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    Submodel500
    Beginning Year1971
    Ending Year1971
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelBASE
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size4.5L/273
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelBASE
    Beginning Year1968
    Ending Year1974
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.2L/318
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelBASE
    Beginning Year1970
    Ending Year1973
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.6L/340
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelBASE
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelR/T
    Beginning Year1968
    Ending Year1971
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.2L/318
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelSE
    Beginning Year1969
    Ending Year1969
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.2L/318
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelSPECIAL EDITION
    Beginning Year1971
    Ending Year1973
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.6L/340
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelSPECIAL EDITION
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.2L/318
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelSPECIAL EDITION
    Beginning Year1971
    Ending Year1974
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.9L/360
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelSUPER BEE
    Beginning Year1971
    Ending Year1971
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.2L/318
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCHARGER
    SubmodelSUPER BEE
    Beginning Year1971
    Ending Year1971
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.6L/340
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCORONET
    Submodel440
    Beginning Year1967
    Ending Year1968
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size4.5L/273
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCORONET
    Submodel440
    Beginning Year1968
    Ending Year1970
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.2L/318
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.
  • MakeDODGE
    ModelCORONET
    Submodel440
    Beginning Year1970
    Ending Year1970
    Engine TypeV8
    Engine FamilyMopar small block LA
    Engine Size5.6L/340
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftYes
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftYes
    Automatic Transmission Floor ShiftYes
    Footnotes1 - Without smog injection or injection heads. 13 - A-type engines only (will fit with in-line port pattern only). 15 - Reduced length header to provide maximum ground clearance. 75 - 4-barrel heads only. 151 - Must use TCI-type mini starter.

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