800.345.4545
Unrivaled Customer Service
And Expert Tech Advice!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
0
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

Hedman Standard Duty HTC Coated Full-Length Headers 1970-79 Pontiac Firebird 326-455

Hedman 28156

500-28156

made in usa
Hedman Standard Duty HTC Coated Full-Length Headers 1970-79 Pontiac Firebird 326-455 $531.99
jegs shipping
FREE Shipping
Ships directly from the manufacturer
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
Need it Sooner? This similar item ships today!
JEGS Metallic Ceramic Coated Long Tube Headers 1964-1981 Pontiac Passenger Car (326-455 c.i.)
JEGS 555-300121
$381.94
View Details
Standard Duty HTC Coated Full-Length Headers
  • 1970-79 Pontiac Firebird 326-455
  • 1-3/4" Tube, 3" Collector

  • Hedman 28156 Details

    Pontiac Cars

  • Without smog injection or injection heads
  • Includes parts necessary to retain 49-state emission devices
  • Modification to stock exhaust required to retain catalytic converter
  • Some heads require drilling and tapping of end holes
  • Not legal for sale or use in California on pollution-controlled vehicles
  • EO#D167-27

  • Specifications:

    Application
    Automotive
    Tube Direction
    Down Swept
    Gaskets Included
    Yes
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Tuned
    No
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Cross Over Pipe Included
    No
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Weld-Up
    No
    Primary Tube Diameter (in.)
    1 3/4
    Quantity
    Sold as a pair
    Primary Tube Gauge
    18-gauge
    Flange Style
    Standard
    Collector Attachment
    Ball and socket flange
    Collector Diameter (in.)
    3
    Cylinder Head Port Shape
    D-port
    CARB EO Number
    D-167-26 (pdf)
    Manufacturer's Part Number:
    28156
    Shipping Weight:
    29.9
    Package Height:
    39.3
    Package Depth:
    9.3
    Package Width:
    18.5

    Hedman's HTC Hi-Tech Coated Headers come pre-coated from the factory with a protective ceramic-metallic finish. This coating provides a durable, shiny finish that helps lower under hood temperatures. Hedman Hedders pioneered the automotive application of ceramic-metallic coatings in the early 1980s. Previously exclusive to the aerospace industry, Hedman Hedders recognized the coating's potential to improve both the lifespan and functionality of exhaust headers while adding performance, flow and protection. Made in the USA.

    Features:
  • Coating offers protection up to 1400°.
  • Won't chip, peel, or "blue" like chrome.
  • Superior heat insulation.
  • Increased exhaust velocity for more power.

    NOTE: Installing coated headers on an engine during the break-in period will cause discoloration. The use of factory manifolds or an old set of headers is recommended while breaking in an engine.

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

  • Does Hedman 28156 fit your vehicle?

    Narrow Results

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • SubModel: ESPRIT
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1971 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 PONTIAC FIREBIRD

    • CC: 5733
    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: T
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1971 PONTIAC FIREBIRD

    • CC: 5733
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • EngineType: ALL
    • SubModel: TRANS AM

    1976 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1974 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: ESPRIT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: Y
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1973 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: TRANS AM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: S
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 PONTIAC FIREBIRD

    • CC: 5733
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: S
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 5733
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 PONTIAC FIREBIRD

    • CC: 7456
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 7.5
    • SubModel: FORMULA
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1970-1971 PONTIAC FIREBIRD

    • CC: 5733
    • Liter: 5.7
    • SubModel: FORMULA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: T
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 PONTIAC FIREBIRD

    • CC: 7456
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 7.5
    • SubModel: TRANS AM
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1975 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • SubModel: TRANS AM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 7.5
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: Y
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1974 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: ESPRIT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: W
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1974 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 5737
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: T
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: Y
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1975 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1979 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1974 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: X
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1974 PONTIAC FIREBIRD

    • CC: 5737
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: T
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1977-1979 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: TRANS AM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: S
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1977 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1977 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: W
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1971 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • SubModel: TRANS AM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • EngineType: ALL
    • SubModel: TRANS AM

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 7.5
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: X
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1973-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: Y
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1970 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: TRANS AM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • EngineType: ALL
    • SubModel: FORMULA

    1971-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1971 PONTIAC FIREBIRD

    • CC: 5733
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: T
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1971 PONTIAC FIREBIRD

    • CC: 7456
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 7.5
    • SubModel: ESPRIT
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 5737
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: TRANS AM
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1975 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970-1971 PONTIAC FIREBIRD

    • CC: 6555
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 6.6
    • SubModel: ESPRIT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977 PONTIAC FIREBIRD

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 5737
    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Some Heads Require Drilling And Tapping Of End Holes~Includes Parts Necessary To Retain Emission Devices (50 States)~Except Round Ports~w/o A.I.R Systems Emission Controls Are Not Removed Considered OEM Repl.~Without Smog Injection Or Injection Heads~Not For Ram Air III Or IV Styled Heads
    • Liter: 5.7
    • SubModel: FORMULA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
    Items You Need
    Items You May Also Consider
    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.