1978 GMC K25 Headers

140 products fit your

1978 GMC K25

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140 products

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Fitment

1978 GMC K25

Products

-9%

Doug's Headers |

#447D300YB

Doug's Headers D300Y-B Tri-Y Header, 1-5/8 In, 73-87 Chevy Truck, Blk

Header Tube Type:

Tri-Y

Exhaust Port Shape:

Oval

Flange Style:

Standard

$776.35

/set

$853.99

-18%

Patriot Exhaust |

#447H8054

Patriot Exhaust H8054 Header, 73-87 Chevy Truck BBC, Raw, 1-3/4 Inch

Header Tube Type:

Long Tube

Flange Style:

Standard

Primary Tube Diameter:

1-3/4"

$338.55

/set

$413.79

Hedman Hedders |

#41866091

Hedman Hedders 66091 67-91 Chevy Truck Headers, HTC

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$740.99

/set

Hedman Hedders |

#41863091

Hedman Hedders 63091 67-91 Chevy Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$863.43

/set

Hedman Hedders |

#41869091

Hedman Hedders 69091 82-91 GM Blazer Headers, Uncoated

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$529.99

/set

Hooker Header Installation Guide

Hooker headers are installed in a 1967 Pontiac Firebird for increased power and a boost in performance. See how to work through fitment of the steering box, clutch Z bar and starter.

Speedway Roadster Headers for a 305 Trike

In this Tech Tip, a customer asked about using a set of Small Block Chevy Sprint Roadster headers for his trike, powered by a stock 305.

Replacing GM Rear End Spherical Bushings

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

Hedman Hedders |

#41869891

Hedman Hedders 69891 82-91 GM Blazer Headers, Silver

Header Tube Type:

Long Tube

Exhaust Port Shape:

Oval

Primary Tube Diameter:

1-5/8"

$783.99

/set

Rebate

Flowtech 11500FLT, Long Tube Header, 3 Inch Collector Size

Flowtech Exhaust |

#42511500FLT

Flowtech 11500FLT, Long Tube Header, 3 Inch Collector Size

(22)

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$223.95

/set

$249.95

Rebate

Flowtech 31500FLT, Long Tube Header, Ceramic Coated

Flowtech Exhaust |

#42531500FLT

Flowtech 31500FLT, Long Tube Header, Ceramic Coated

(2)

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$477.95

/set

$531.95

Hedman Hedders |

#41869093

Hedman Hedders 69093 67-91 Chevy Truck Headers, Uncoated

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$443.99

/set

Hedman Hedders |

#41869120

Hedman Hedders 69120 67-91 GM TRuck Headers, Uncoated

Header Tube Type:

Long Tube

Exhaust Port Shape:

Square

Flange Style:

Standard

$444.99

/set

Hedman Hedders |

#41869126

Hedman Hedders 69126 67-91 GM TRuck Headers, HTC

Header Tube Type:

Long Tube

Exhaust Port Shape:

Square

Flange Style:

Standard

$639.99

/set

Hedman Hedders |

#41869313

Hedman Hedders 69313 63-79 GM Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Square

Flange Style:

Standard

$646.69

/set

Hedman Hedders |

#41863093

Hedman Hedders 63093 67-91 Chevy Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$619.99

/set

Hedman Hedders |

#41863092

Hedman Hedders 63092 67-87 GM Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$678.26

/set

Hedman Hedders |

#41863892

Hedman Hedders 63892 67-91 GM Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Oval

Flange Style:

Standard

$771.38

/set

Hedman Hedders |

#41869083

Hedman Hedders 69083 67-91 Chevy Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Rectangle

Flange Style:

Standard

$653.99

/set

Hedman Hedders |

#41863117

Hedman Hedders 63117 68-91 GM Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$810.47

/set

Hedman Hedders |

#41863827

Hedman Hedders 63827 68-91 GM Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Square

Flange Style:

Standard

$925.34

/set

Hedman Hedders |

#41863337

Hedman Hedders 63337 67-91 Chevy Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$659.30

/set

Hedman Hedders |

#41863837

Hedman Hedders 63837 68-91 GM Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Oval

Flange Style:

Standard

$593.99

/set

Hedman Hedders |

#41862233

Hedman Hedders 62233 67-91 Chevy Truck Headers, Black

Header Tube Type:

Long Tube

Flange Style:

Standard

Primary Tube Diameter:

1-5/8"

$1,031.94

/set

Hedman Hedders |

#41863830

Hedman Hedders 63830 67-91 GM 4WD Truck Headers, Long Tube, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Oval

Flange Style:

Standard

$637.99

/set

Hedman Hedders |

#41863133

Hedman Hedders 63133 67-91 Chevy Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$742.97

/set

Hedman Hedders |

#41863831

Hedman Hedders 63831 68-91 GM Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Oval

Flange Style:

Standard

$651.99

/set

Hedman Hedders |

#41869233

Hedman Hedders 69233 67-91 GM 4WD Truck Headers, Long Tube, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$557.80

/set

Hedman Hedders |

#41863897

Hedman Hedders 63897 67-91 GM Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Oval

Flange Style:

Standard

$740.99

/set

Hedman Hedders |

#41863393

Hedman Hedders 63393 67-91 Chevy Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$772.56

/set

Hedman Hedders |

#41863891

Hedman Hedders 63891 82-91 GM Blazer Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Oval

Flange Style:

Standard

$781.99

/set

Hedman Hedders |

#41869333

Hedman Hedders 69333 67-91 Chevy Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$792.66

/set

Hedman Hedders |

#41866093

Hedman Hedders 66093 67-91 Chevy Truck Headers, HTC

Header Tube Type:

Long Tube

Exhaust Port Shape:

Round

Flange Style:

Standard

$648.99

/set

Hedman Hedders |

#41863893

Hedman Hedders 63893 67-91 GM Truck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Oval

Flange Style:

Standard

$709.99

/set

Hedman Hedders |

#41869123

Hedman Hedders 69123 67-91 GM TRuck Headers, Black

Header Tube Type:

Long Tube

Exhaust Port Shape:

Square

Flange Style:

Standard

$733.99

/set

Showing all 140 results

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1978 GMC K25 Headers

Header Tube Type

Brand

Availability

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Price

Customer Rating

Products

Doug's Headers D300Y-B Tri-Y Header, 1-5/8 In, 73-87 Chevy Truck, Blk

Patriot Exhaust H8054 Header, 73-87 Chevy Truck BBC, Raw, 1-3/4 Inch

Hedman Hedders 66091 67-91 Chevy Truck Headers, HTC

Hedman Hedders 63091 67-91 Chevy Truck Headers, Black

Hedman Hedders 69091 82-91 GM Blazer Headers, Uncoated

Related Articles

Hedman Hedders 69891 82-91 GM Blazer Headers, Silver

Flowtech 11500FLT, Long Tube Header, 3 Inch Collector Size

Flowtech 31500FLT, Long Tube Header, Ceramic Coated

Hedman Hedders 69093 67-91 Chevy Truck Headers, Uncoated

Hedman Hedders 69120 67-91 GM TRuck Headers, Uncoated

Hedman Hedders 69126 67-91 GM TRuck Headers, HTC

Hedman Hedders 69313 63-79 GM Truck Headers, Black

Hedman Hedders 63093 67-91 Chevy Truck Headers, Black

Hedman Hedders 63092 67-87 GM Truck Headers, Black

Hedman Hedders 63892 67-91 GM Truck Headers, Black

Hedman Hedders 69083 67-91 Chevy Truck Headers, Black

Hedman Hedders 63117 68-91 GM Truck Headers, Black

Hedman Hedders 63827 68-91 GM Truck Headers, Black

Hedman Hedders 63337 67-91 Chevy Truck Headers, Black

Hedman Hedders 63837 68-91 GM Truck Headers, Black

Hedman Hedders 62233 67-91 Chevy Truck Headers, Black

Hedman Hedders 63830 67-91 GM 4WD Truck Headers, Long Tube, Black

Hedman Hedders 63133 67-91 Chevy Truck Headers, Black

Hedman Hedders 63831 68-91 GM Truck Headers, Black

Hedman Hedders 69233 67-91 GM 4WD Truck Headers, Long Tube, Black

Hedman Hedders 63897 67-91 GM Truck Headers, Black

Hedman Hedders 63393 67-91 Chevy Truck Headers, Black

Hedman Hedders 63891 82-91 GM Blazer Headers, Black

Hedman Hedders 69333 67-91 Chevy Truck Headers, Black

Hedman Hedders 66093 67-91 Chevy Truck Headers, HTC

Hedman Hedders 63893 67-91 GM Truck Headers, Black

Hedman Hedders 69123 67-91 GM TRuck Headers, Black

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