Hedman Performance Group

Photo of header reducers, gaskets and hardware included with Hedman Hedders

Photo of Hedman's Black-Maxx Satin Black Ceramic-metallic header finish.

Black Long-Tube Headers For 1964-72 GTO, LeMans w/ Pontiac V8

PONT PASS CAR 64-70 326-455- BLACK MAXX

Part#35263

$677.58

Product Specifications

[PLEASE REVIEW THE FOLLOWING PRODUCT ATTRIBUTES & VEHICLE APPLICATION FOOTNOTES SPECIFIC TO YOUR VEHICLE, THOROUGHLY]

Tube Diameter 1-3/4 in.
Tube Style Long Tubes
Air Conditioning Yes
Automatic Transmission - Column No
Automatic Transmission - Floor Yes
Manual Transmission - Column No
Manual Transmission - Floor Yes
Power Steering Yes
Collector Attachment 3 in.
Collector Diameter 3 in.
Collector Size 3 in.
Collector Style BALL and SOCKET Style (Gasketless)
Reducer Outlet Size 2-1/2 in.
Exhaust System Dia 2-1/2 in.
Contents headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware
E.O. # No
Emissions Notes Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only.
Finish BLACK MAXX Satin Black Ceramic-Metallic
Finish Type BLACK MAXX- Black Ceramic-Metallic Coating
Flange Style Standard
Flange Thickness 0.3125 in.
Header Style Long Tube
Notes 64-72 Pontiac GTO, LeMans, Tempest 326-455
Material Mild Steel
Tube Design Standard
Tube Length Long Tubes
Tube Material Thickness 16g
Tube Size 1-3/4 in.
Variations 35260
with A.I.R. System No
with EGR No
Weld-Up No
Tuned No
Bolts/Studs Included Yes
Catalytic Converter(s) Included No
Crossover Pipe Included No
Gasket Or Seal Included Yes
Header Fasteners Included Yes
Installation Hardware Included Yes
Motor Mounts Included No
Mounting Hardware Included Yes
Reducers Included Yes
Y-Pipe Included No
Quantity Sold as a pair.
Primary Tube Gauge 16g
Primary Tube Diameter (in) 1.75 in.
Package Contents Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
Header Material Mild Steel
Header Finish BLACK MAXX Satin Black Ceramic-Metallic
Cylinder Head Port Shape Oval
Cylinder Head Stock Profile Heads
Header Construction MILD STEEL- Standard-Duty
Replacement Gasket 27600
Replacement Head Flange Gasket 27600
California Proposition 65 WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov

Vehicle Applications

Pontiac

Year

C.I.D.

Liter

Block Type

Cylinders

Fuel Type

Drive Type

1964

389

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1965

389

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1966

389

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1967

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1968

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1969

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1970

455

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1970

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1971

455

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1971

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1972

455

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1972

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

LeMans

Year

C.I.D.

Liter

Block Type

Cylinders

Fuel Type

Drive Type

1964

326

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1965

326

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1966

326

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1967

326

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1968

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1968

350

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1969

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1969

350

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1970

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1970

350

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1970

455

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1971

455

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1971

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1971

350

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1972

455

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1972

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1972

350

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

Tempest

Year

C.I.D.

Liter

Block Type

Cylinders

Fuel Type

Drive Type

1964

326

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1965

326

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1966

326

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1967

326

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1968

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1968

350

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1969

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1969

350

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1970

400

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455

1970

350

Vehicle Specific Information
Air Conditioning	Yes
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (10) Not For Ram Air III or IV style heads. (23) Some heads require drilling and tapping of end holes. (29) Must modify Clutch linkage, or use GM 3920615 style (i.e. AMD R-211) bellcrank Clutch Z-Bar.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	Pontiac 326-455