1981 GMC G2500 Headers and Exhaust Parts

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1981 GMC G2500

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1981 GMC G2500

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-9%

Patriot Exhaust |

#447H7765

Patriot Exhaust H7765 Tubing, Mild Steel, 3 Inch, 16 Gauge

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.00"

$93.31

/each

$102.64

-9%

Patriot Exhaust |

#447H7767

Patriot Exhaust H7767 Tubing, Mild Steel, 3-1/2 Inch, 16 Gauge

Exhaust Tubing Diameter:

3-1/2 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.50"

$109.76

/each

$120.74

-9%

Patriot Exhaust |

#447H7768

Patriot Exhaust H7768 Tubing, Mild Steel, 4 Inch, 16 Gauge

Exhaust Tubing Diameter:

4 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

4.00"

$109.76

/each

$120.74

-9%

Patriot Exhaust |

#447H7066

Patriot Exhaust H7066 16 Gauge Exhaust Pipe U-Bends, 4 Inch

(2)

Exhaust Tubing Diameter:

4 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

4.00"

$98.79

/each

$108.67

-9%

Patriot Exhaust |

#447H7068

Patriot Exhaust H7068 16 Gauge Exhaust Pipe U-Bends, 1-3/4 Inch

Exhaust Tubing Diameter:

1-3/4 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.75"

$43.88

/each

$48.27

Exhaust System Header Wrapping

Whether you’re looking for performance improvements or heat reduction, if you decide to wrap your headers, we'll show you the benefits and possible precautions to take before you wrap your exhaust.

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.

Exhaust Repair

Some basic info on the various exhaust options carried by Speedway Motors.

Speedway Tech Talk - Derby Car Headers

Jeremy explains the different options of headers that Speedway Motors offers for Demolition Derby cars. Watch this video to see a variety of options and the benefits of certain headers.

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.

Rebuilding Junkyard SBC Vortec Cylinder Heads

Learn how to re-build a junkyard Small Block Chevy. A step-by-step guide on how to select a SBC, machine the valve guide bosses down, and what parts to use to upgrade to your personal liking.

-9%

Patriot Exhaust |

#447H7070

Patriot Exhaust H7070 16 Gauge Exhaust Pipe 120 Degree Bends, 3 Inch

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

3.00"

$60.39

/each

$66.43

-9%

Patriot Exhaust |

#447H7076

Patriot Exhaust H7076 18 Gauge Exhaust Pipe, 2-1/2 Inch

Exhaust Tubing Diameter:

2-1/2 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.50"

$60.39

/each

$66.43

-9%

Patriot Exhaust |

#447H7077

Patriot Exhaust H7077 Gauge Exhaust Pipe U-Bends, 2-1/8 Inch

Exhaust Tubing Diameter:

2-1/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.13"

$27.43

/each

$30.17

-9%

Patriot Exhaust |

#447H7078

Patriot Exhaust H7078 18 Gauge Exhaust Pipe, 2-3/8 Inch

Exhaust Tubing Diameter:

2-3/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.38"

$32.91

/each

$36.20

-9%

Patriot Exhaust |

#447H7173

Patriot Exhaust H7173 U-Clamp, 1-5/8 Inch

Exhaust Clamp Type:

Saddle/U-Bolt

Inside Diameter:

1.625"

$4.35

/each

$4.79

-9%

Patriot Exhaust |

#447H7174

Patriot Exhaust H7174 U-Clamp, 1-3/4 Inch

(1)

Exhaust Clamp Type:

Saddle/U-Bolt

Inside Diameter:

1.75"

$10.97

/each

$12.07

-9%

Patriot Exhaust |

#447H7179

Patriot Exhaust H7179 U-Clamp, 2-1/4 Inch

(1)

Exhaust Clamp Type:

Saddle/U-Bolt

Inside Diameter:

2.25"

$5.43

/each

$5.97

-9%

Patriot Exhaust |

#447H7180

Patriot Exhaust H7180 U-Clamp, 2-1/2 Inch

Exhaust Clamp Type:

Saddle/U-Bolt

Inside Diameter:

2.5"

$7.09

/each

$7.80

-9%

Patriot Exhaust |

#447H7681

Patriot Exhaust H7681 4-1 Formed Collector, 2x4x10 Inch

Material Type:

Steel

Sold in Quantity:

Pair

$98.79

/pair

$108.67

-9%

Patriot Exhaust |

#447H7682

Patriot Exhaust H7682 4-1 Formed Collector, 3-1/2 Inch

Material Type:

Steel

Sold in Quantity:

Pair

$109.76

/pair

$120.74

-9%

Patriot Exhaust |

#447H3819

Patriot Exhaust H3819 Side Tubes Turnout, Raw Steel, 26 Inch

Exhaust Tubing Diameter:

3-1/2 Inch

Finish:

Raw

$193.23

/pair

$212.55

-9%

Patriot Exhaust |

#447H7684

Patriot Exhaust H7684 4-1 Formed Collector, 3-1/2 Inch

Material Type:

Steel

Sold in Quantity:

Pair

$104.28

/pair

$114.71

-9%

Patriot Exhaust |

#447H38191

Patriot Exhaust H3819-1 Side Tubes Turnout, CC, 26 Inch

Exhaust Tubing Diameter:

3-1/2 Inch

Finish:

Ceramic Coated

$275.62

/pair

$303.18

-9%

Patriot Exhaust |

#447H7685

Patriot Exhaust H7685 4-1 Formed Collector, 2-1/4x3-1/2x10 Inch

Material Type:

Steel

Sold in Quantity:

Pair

$98.79

/pair

$108.67

-9%

Patriot Exhaust |

#447H3821

Patriot Exhaust H3821 Side Tubes Turnout Muffler, Raw Steel, 26 Inch

Exhaust Tubing Diameter:

3-1/2 Inch

Finish:

Raw

$271.74

/pair

$298.91

-9%

Patriot Exhaust |

#447H38211

Patriot Exhaust H3821-1 Side Tubes Turnout Muffler, CC, 26 Inch

Exhaust Tubing Diameter:

3-1/2 Inch

Finish:

Ceramic Coated

$294.25

/pair

$323.68

-9%

Patriot Exhaust |

#447H3821B

Patriot Exhaust H3821-B Side Tubes Turnout Muffler, Black, 26 Inch

(1)

Exhaust Tubing Diameter:

3-1/2 Inch

Finish:

Painted

$260.25

/set

$286.28

-9%

Patriot Exhaust |

#447H3843

Patriot Exhaust H3843 Side Tubes Auger Muffler Insert, 3-1/2 Inch

(2)

GTIN Code:

694342501419

$29.08

/each

$31.99

-9%

Patriot Exhaust |

#447H7690

Patriot Exhaust H7690 4-1 Formed Collector 4 Inch

Material Type:

Steel

Sold in Quantity:

Pair

$115.30

/pair

$126.83

-9%

Patriot Exhaust |

#447H7691

Patriot Exhaust H7691 Slip-On 4-1 Collectors, 2-1/4x4x12

Material Type:

Steel

Sold in Quantity:

Pair

$329.39

/pair

$362.33

-9%

Patriot Exhaust |

#447H7696

Patriot Exhaust H7696 4-1 Formed Collector, 2-1/2x5x10, Inch

Material Type:

Steel

Sold in Quantity:

Pair

$87.82

/pair

$96.60

-9%

Patriiot Exhaust H7697 4-1 Slip-On Collectors, 2-1/2x5x12 Inch

Patriot Exhaust |

#447H7697

Patriiot Exhaust H7697 4-1 Slip-On Collectors, 2-1/2x5x12 Inch

Material Type:

Steel

Sold in Quantity:

Pair

$285.50

/pair

$314.05

-9%

Patriot Exhaust |

#447H7700

Patriot Exhaust H7700 Tubing, Stainless Steel, 1-1/4 Inch, 18 Gauge

Exhaust Tubing Diameter:

1-1/4 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.25"

$137.24

/each

$150.96

-9%

Patriot Exhaust |

#447H7701

Patriot Exhaust H7701 Tubing, Stainless Steel, 1-3/8 Inch, 18 Gauge

Exhaust Tubing Diameter:

1-3/8 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.38"

$137.24

/each

$150.96

-9%

Patriot Exhaust |

#447H7704

Patriot Exhaust H7704 Tubing, Stainless Steel, 1-3/4 Inch, 18 Gauge

Exhaust Tubing Diameter:

1-3/4 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

1.75"

$148.21

/each

$163.03

-9%

Patriot Exhaust |

#447H3817

Patriot Exhaust H3817 Exhaust Turnout Inlet/Outlet, 3-1/2 In, 20 In

Exhaust Tubing Diameter:

3-1/2 Inch

Finish:

Raw

$142.16

/pair

$156.38

-9%

Patriot Exhaust |

#447H3817B

Patriot Exhaust H3817-B Exhaust Turnout Inlet/Outlet, 3-1/2 In, 20 In

Exhaust Tubing Diameter:

3-1/2 Inch

Finish:

Painted

$147.69

/set

$162.46

-9%

Patriot Exhaust |

#91013331

Patriot Exhaust Short Steel Megaphones, 2 x 4 x 12 Inch

(4)

Overall Length:

12.00"

Exhaust Tubing Diameter:

2 Inch

Sold in Quantity:

Each

$51.03

/each

$56.13

Stainless Steel Exhaust Pipe Mandrel Bend, 45 Degree, 3 Inch

Speedway Motors |

#91013897

Stainless Steel Exhaust Pipe Mandrel Bend, 45 Degree, 3 Inch

Exhaust Tubing Diameter:

3 Inch

Exhaust Pipe Type:

Elbow/Connector

Outside Diameter:

3.00"

$41.99

/each

Speedway Motors |

#91019980

Speedway Motors LS Swap Cast Iron V Band Exhaust Manifold, RH

(1)

Material Type:

Cast Iron

Hardware Included:

Yes

as low as

$168.99

/each

Mild Steel Exhaust Pipe Mandrel Bend, 45 Degree, 2-1/4 Inch

Speedway Motors |

#91013875

Mild Steel Exhaust Pipe Mandrel Bend, 45 Degree, 2-1/4 Inch

(9)

Exhaust Tubing Diameter:

2-1/4 Inch

Exhaust Pipe Type:

Elbow/Connector

Outside Diameter:

2.25"

$28.99

/each

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1981 GMC G2500 Headers and Exhaust Parts

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Products

Patriot Exhaust H7765 Tubing, Mild Steel, 3 Inch, 16 Gauge

Patriot Exhaust H7767 Tubing, Mild Steel, 3-1/2 Inch, 16 Gauge

Patriot Exhaust H7768 Tubing, Mild Steel, 4 Inch, 16 Gauge

Patriot Exhaust H7066 16 Gauge Exhaust Pipe U-Bends, 4 Inch

Patriot Exhaust H7068 16 Gauge Exhaust Pipe U-Bends, 1-3/4 Inch

Related Articles

Patriot Exhaust H7070 16 Gauge Exhaust Pipe 120 Degree Bends, 3 Inch

Patriot Exhaust H7076 18 Gauge Exhaust Pipe, 2-1/2 Inch

Patriot Exhaust H7077 Gauge Exhaust Pipe U-Bends, 2-1/8 Inch

Patriot Exhaust H7078 18 Gauge Exhaust Pipe, 2-3/8 Inch

Patriot Exhaust H7173 U-Clamp, 1-5/8 Inch

Patriot Exhaust H7174 U-Clamp, 1-3/4 Inch

Patriot Exhaust H7179 U-Clamp, 2-1/4 Inch

Patriot Exhaust H7180 U-Clamp, 2-1/2 Inch

Patriot Exhaust H7681 4-1 Formed Collector, 2x4x10 Inch

Patriot Exhaust H7682 4-1 Formed Collector, 3-1/2 Inch

Patriot Exhaust H3819 Side Tubes Turnout, Raw Steel, 26 Inch

Patriot Exhaust H7684 4-1 Formed Collector, 3-1/2 Inch

Patriot Exhaust H3819-1 Side Tubes Turnout, CC, 26 Inch

Patriot Exhaust H7685 4-1 Formed Collector, 2-1/4x3-1/2x10 Inch

Patriot Exhaust H3821 Side Tubes Turnout Muffler, Raw Steel, 26 Inch

Patriot Exhaust H3821-1 Side Tubes Turnout Muffler, CC, 26 Inch

Patriot Exhaust H3821-B Side Tubes Turnout Muffler, Black, 26 Inch

Patriot Exhaust H3843 Side Tubes Auger Muffler Insert, 3-1/2 Inch

Patriot Exhaust H7690 4-1 Formed Collector 4 Inch

Patriot Exhaust H7691 Slip-On 4-1 Collectors, 2-1/4x4x12

Patriot Exhaust H7696 4-1 Formed Collector, 2-1/2x5x10, Inch

Patriiot Exhaust H7697 4-1 Slip-On Collectors, 2-1/2x5x12 Inch

Patriot Exhaust H7700 Tubing, Stainless Steel, 1-1/4 Inch, 18 Gauge

Patriot Exhaust H7701 Tubing, Stainless Steel, 1-3/8 Inch, 18 Gauge

Patriot Exhaust H7704 Tubing, Stainless Steel, 1-3/4 Inch, 18 Gauge

Patriot Exhaust H3817 Exhaust Turnout Inlet/Outlet, 3-1/2 In, 20 In

Patriot Exhaust H3817-B Exhaust Turnout Inlet/Outlet, 3-1/2 In, 20 In

Patriot Exhaust Short Steel Megaphones, 2 x 4 x 12 Inch

Stainless Steel Exhaust Pipe Mandrel Bend, 45 Degree, 3 Inch

Speedway Motors LS Swap Cast Iron V Band Exhaust Manifold, RH

Mild Steel Exhaust Pipe Mandrel Bend, 45 Degree, 2-1/4 Inch