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 28156

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

Hedman 28156

500-28156

made in usa
Hedman 28156 Standard Duty HTC Coated Full-Length Headers 1970-79 Pontiac Firebird 326-455 $531.99
jegs shipping
FREE Shipping
Estimated to ship directly from the manufacturer on 05/29/18
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
Need it Sooner? This similar item ships today!
JEGS Performance Products Metallic Ceramic Coated Long Tube Headers 1964-1981 Pontiac Passenger Car (326-455 c.i.)
JEGS Performance Products 555-300121
$381.99
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:

    Tube Diameter
    1.75
    Collector Tube Size (in.)
    3
    Application
    Automotive
    Tube Direction
    Down Swept
    Coating/Finish
    Metallic Ceramic
    Engine Make/Size
    Pontiac 400-455
    Port Shape
    Rectangle
    Material
    Steel
    Engine Make/Size
    Pontiac 350-400
    Gaskets Included
    Yes
    Collector Diameter (in.)
    3
    Bolts/Studs Included
    Yes
    CARB EO Number
    D-167-26 (pdf)
    Catalytic Converter(s) Included
    No
    Collector Attachment
    Ball and socket flange
    Cross Over Pipe Included
    No
    Cylinder Head Port Shape
    D-port
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 3/4
    Primary Tube Gauge
    18-gauge
    Quantity
    Sold as a pair
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Tuned
    No
    Weld-Up
    No
    Flange Style
    Standard
    Manufacturer's Part Number:
    28156

    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

    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 )

    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 )

    1972-1973 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 )

    1970-1971 PONTIAC FIREBIRD

    • CC: 5733
    • Liter: 5.7
    • SubModel: FORMULA
    • 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: FORMULA
    • 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 )

    1977-1979 PONTIAC FIREBIRD

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

    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 )

    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 PONTIAC FIREBIRD

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

    1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: FORMULA
    • 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
    • EngineType: ALL
    • SubModel: FORMULA

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: P
    • 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 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: T
    • 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 )

    1971 PONTIAC FIREBIRD

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

    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 )

    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 )

    1977 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: R
    • 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: ESPRIT
    • Engine Vin: R
    • 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 )

    1974 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • 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 )

    1977 PONTIAC FIREBIRD

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

    1971-1974 PONTIAC FIREBIRD

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

    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 )

    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 )

    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 )

    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 )

    1972-1974 PONTIAC FIREBIRD

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

    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 )

    1971-1973 PONTIAC FIREBIRD

    • CC: 6555
    • 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 )

    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 )

    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 )

    1977 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • 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: BASE
    • Engine Vin: P
    • 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 )

    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 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • SubModel: TRANS AM
    • 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: ESPRIT
    • 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 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: T
    • 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: FORMULA
    • 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 )

    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: TRANS AM
    • Engine Vin: X
    • 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: TRANS AM
    • 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: BASE
    • 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
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • SubModel: TRANS AM
    • 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 )

    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 )

    1972-1973 PONTIAC FIREBIRD

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

    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 )

    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

    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 )

    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 )

    1977-1979 PONTIAC FIREBIRD

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

    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 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: W
    • 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 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • SubModel: ESPRIT
    • 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: BASE
    • 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: ESPRIT
    • 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 )

    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 )

    1977 PONTIAC FIREBIRD

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

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: T
    • 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
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    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 )

    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 )

    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 )
    Items You Need
    Items You May Also Consider
    Some parts are not legal for use in California or other states with similar laws / regulations