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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Dynatech |

#31177606352

Dynatech® 776-06352 Split Flow Race Muffler

Inlet Diameter:

3.5"

Outlet Diameter:

3.5"

$129.99

/each

Dynatech |

#31179460209

Dynatech® 794-60209 Mild Steel Mandrel J-Bend Pipe, 2-1/2"

Exhaust Tubing Diameter:

2-1/2 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.50"

$35.99

/each

Dynatech |

#31178001100

Dynatech® 780-01100 Exhaust Turn Down w/ Vortex® Cone, 3'

Exhaust Tubing Diameter:

3 Inch

Finish:

Raw

$149.99

/each

EXtreme 3-1/2 Inch 3-Bolt Header Collector Gaskets

Speedway Motors |

#91013542

EXtreme 3-1/2 Inch 3-Bolt Header Collector Gaskets

(2)

Overall Thickness:

.085"

Inside Diameter:

3.50"

Collector Diameter:

3-1/2 Inch

$32.99

/pair

-9%

Patriot Exhaust |

#93080671

Patriot Exhaust H8067-1 4.3 V6 Tight-Fit Shorty Headers, Ceramic

Header Tube Type:

Block Hugger

Flange Style:

Standard

Primary Tube Diameter:

1-1/2"

$801.61

/pair

$881.77

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.

Tight-Fit Small Block Chevy ZZ-4 Block Hugger Headers, Stainless Steel

Speedway Motors |

#9300104S

Tight-Fit Small Block Chevy ZZ-4 Block Hugger Headers, Stainless Steel

(1)

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Oval

Flange Style:

Standard

$311.99

/pair

AutoMeter |

#1826144

AutoMeter 6144 Pyrometer Gauge, 2 1/16 Inch, 1600 Deg., Cobalt

Gauge Face Color:

Black

Bezel Finish:

Silver

Overall Diameter:

2-1/16

$234.99

/each

AutoMeter |

#1825944M

AutoMeter 5944-M Pyrometer Gauge, 2 1/16 Inch, 900 Degrees C, ES

Gauge Face Color:

Black

Bezel Finish:

Black

Overall Diameter:

2-1/16

$236.99

/each

AutoMeter |

#1826144M

AutoMeter 6144-M Pyrometer Gauge, 2 1/16 Inch, 900 Deg. C, Cobalt

Gauge Face Color:

Black

Bezel Finish:

Silver

Overall Diameter:

2-1/16

$237.99

/each

AutoMeter |

Gauge Face Color:

White

Bezel Finish:

Brushed Aluminum

Overall Diameter:

2-1/16

$257.99

/each

-7%

Hooker 2001HKR Block Hugger Header, SB Chevy, 1.625 Inch Tube Size

Hooker Headers |

#4252001HKR

Hooker 2001HKR Block Hugger Header, SB Chevy, 1.625 Inch Tube Size

(1)

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Round

Flange Style:

Standard

$675.95

/set

$731.95

$559 Off

Flowtech 11702-2FLT SB Chevy Lakester Header, 1-5/8 Inch Primaries

Flowtech Exhaust |

#425117022FLT

Flowtech 11702-2FLT SB Chevy Lakester Header, 1-5/8 Inch Primaries

Header Tube Type:

Lake Style

Flange Style:

Standard

Primary Tube Diameter:

1-5/8"

$535.61

/each

$1,094.95

-11%

Flowtech 11704-2FLT SB Chevy Rams Horn Exhaust Manifold, Chrome Finish

Flowtech Exhaust |

#425117042FLT

Flowtech 11704-2FLT SB Chevy Rams Horn Exhaust Manifold, Chrome Finish

Finish:

Chrome

Sold in Quantity:

Pair

$562.95

/set

$633.95

Flowtech 11704-RFLT SB Chevy Rams Horn Exhaust Manifold, Uncoated

Flowtech Exhaust |

#42511704RFLT

Flowtech 11704-RFLT SB Chevy Rams Horn Exhaust Manifold, Uncoated

(2)

Finish:

Natural

Sold in Quantity:

Pair

$234.95

/set

-7%

Hooker 21501HKR Aero Chamber Muffler, Single 2-1/4 Inch Offset Inlet

Hooker Headers |

#42521501HKR1

Hooker 21501HKR Aero Chamber Muffler, Single 2-1/4 Inch Offset Inlet

Muffler Type:

Chambered

Inlet Diameter:

2.25"

Outlet Diameter:

2.25"

$140.95

/each

$152.95

Flowtech 11000FLT Universal Block Hugger Header, 1.625 Inch Tube Size

Flowtech Exhaust |

#42511000FLT

Flowtech 11000FLT Universal Block Hugger Header, 1.625 Inch Tube Size

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Round

Flange Style:

Standard

$194.95

/each

Flowtech 50552FLT Warlock BYPASS Series Racing Muffler, 2-1/2 Inch

Flowtech Exhaust |

#42550552FLT

Flowtech 50552FLT Warlock BYPASS Series Racing Muffler, 2-1/2 Inch

Muffler Type:

Turbo-style/Straight-through

Inlet Diameter:

2.5"

Outlet Diameter:

2.5"

$94.95

/each

-7%

Hooker 12570HKR Mild Steel 180 Degree Mandrel J-Bend Pipe, 2 Inch

Hooker Headers |

#42512570HKR

Hooker 12570HKR Mild Steel 180 Degree Mandrel J-Bend Pipe, 2 Inch

Exhaust Tubing Diameter:

2 Inch

Exhaust Pipe Type:

Custom Tubing

Outside Diameter:

2.00"

$24.78

/each

$26.81

-7%

Holley |

#425554100

Holley 554-100 Replacement NTK Wideband Oxygen Sensor

(2)

GTIN Code:

090127666685

Sold in Quantity:

Each

$382.95

/each

$415.95

-9%

Patriot Exhaust |

#9308065

Patriot Exhaust Tight Tuck S/B Chevy Block Hugger Headers

(6)

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Oval

Flange Style:

Standard

as low as

$527.07

/pair

$579.78

-9%

Patriot Exhaust |

#9308080

Patriot Exhaust E-Rod LS Tube Headers, Steel

(1)

Header Tube Type:

Block Hugger

Exhaust Port Shape:

Round

Flange Style:

Standard

as low as

$496.75

/pair

$546.43

AutoMeter |

#182P302328

AutoMeter P302328 Vac/Boost, 2 1/16 Inch, Black/Black, Spek

Overall Diameter:

2-1/16

Body Diameter:

2.06"

Gauge Type:

Electric

$265.99

/each

AutoMeter |

#1825257

AutoMeter 5257 Pyrometer Extension Module for StepperMotor Gauges

Sold in Quantity:

Each

GTIN Code:

046074052576

$105.99

/each

Patriot H7251 3" Diameter, 2 1/4" Outlet Collector Reducers

Patriot Exhaust |

Gauge Face Color:

White/Luminescent green

Bezel Finish:

Silver

Overall Diameter:

2-1/16

$242.99

/each

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1981 GMC G2500 Headers and Exhaust Parts

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Products

Dynatech® 776-06352 Split Flow Race Muffler

Dynatech® 794-60209 Mild Steel Mandrel J-Bend Pipe, 2-1/2"

Dynatech® 780-01100 Exhaust Turn Down w/ Vortex® Cone, 3'

EXtreme 3-1/2 Inch 3-Bolt Header Collector Gaskets

Patriot Exhaust H8067-1 4.3 V6 Tight-Fit Shorty Headers, Ceramic

Related Articles

Tight-Fit Small Block Chevy ZZ-4 Block Hugger Headers, Stainless Steel

AutoMeter 6144 Pyrometer Gauge, 2 1/16 Inch, 1600 Deg., Cobalt

AutoMeter 5944-M Pyrometer Gauge, 2 1/16 Inch, 900 Degrees C, ES

AutoMeter 6144-M Pyrometer Gauge, 2 1/16 Inch, 900 Deg. C, Cobalt

AutoMeter 5247 Thermocouple Kit, Type K, 3/16 Inch Diameter

AutoMeter 6570 Boost, 2 1/16 Inch, 60PSI, Silver Dial W/ Red Led

AutoMeter 4306 Ultra-Lite Mech. Boost Gauge,100 PSI,2-1/16 In.

AutoMeter 4344 Ultra-Lite Digital Stepper Motor Pyrometer Gauge

AutoMeter 880031 Mopar Digital Stepper Motor Pyrometer Gauge

Hooker 2001HKR Block Hugger Header, SB Chevy, 1.625 Inch Tube Size

Flowtech 11702-2FLT SB Chevy Lakester Header, 1-5/8 Inch Primaries

Flowtech 11704-2FLT SB Chevy Rams Horn Exhaust Manifold, Chrome Finish

Flowtech 11704-RFLT SB Chevy Rams Horn Exhaust Manifold, Uncoated

Hooker 21501HKR Aero Chamber Muffler, Single 2-1/4 Inch Offset Inlet

Flowtech 11000FLT Universal Block Hugger Header, 1.625 Inch Tube Size

Flowtech 50552FLT Warlock BYPASS Series Racing Muffler, 2-1/2 Inch

Hooker 12570HKR Mild Steel 180 Degree Mandrel J-Bend Pipe, 2 Inch

Holley 554-100 Replacement NTK Wideband Oxygen Sensor

Patriot Exhaust Tight Tuck S/B Chevy Block Hugger Headers

Patriot Exhaust E-Rod LS Tube Headers, Steel

AutoMeter P302328 Vac/Boost, 2 1/16 Inch, Black/Black, Spek

AutoMeter 5257 Pyrometer Extension Module for StepperMotor Gauges

Patriot H7251 3" Diameter, 2 1/4" Outlet Collector Reducers

K&N 85-21688 Oxygen Sensor Weld-In Bung, Female 18mm x 1.5, Each

AutoMeter 5606 Elite Digital Stepper Motor Boost Gauge, 2-1/16

AutoMeter 3404 Sport-Comp Mechanical Boost Gauge, 35 PSI, 2-5/8

AutoMeter 3644-00406 Pyrometer Gauge, 2 1/16 Inch, 1600 Deg., Blk

AutoMeter 2681 Boost Controller, 2 1/16 Inch, Digital

AutoMeter 5701 Phantom Mechanical Boost/Vacuum Gauge, 2-1/16 Inch

AutoMeter 7305 NV Mechanical Boost Gauge, 60 PSI, 2-1/16 Inch

AutoMeter 7345 Pyrometer Gauge, 2 1/16 Inch, 2000 Deg., NV