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 Mid-Length Headers For 67-69 Camaro 283-400,Close Ratio PS

EARLY SB CAMARO, CHEVELLE MANUAL SHORTIES; CLOSE RATIO STEERING- BLACK MAXX

Part#68653

$684.76

Find Local Dealer

Product Specifications

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

Tube Diameter 1-5/8 in.
Tube Style Mid-Length
Air Conditioning Yes
Automatic Transmission - Column No
Automatic Transmission - Floor No
Manual Transmission - Column No
Manual Transmission - Floor 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 Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
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 Port Shape Oval Port
Header Style Mid-Length (close ratio steering)
Key Feature Close-Ratio Steering Box
Port Shape Oval
Power Steering Yes
Product Info This set of headers has been designed specifically for use on vehicles with a close-ratio steering box.
Material Mild Steel
Tube Design Standard
Tube Length Mid-Length Tubes
Tube Material Thickness 16g
Tube Size 1-5/8 in.
Variations 68650
with A.I.R. System No
with EGR No
Weld-Up No
Tuned No
Bolts/Studs Included Yes
Catalytic Converter(s) Included No
Collector Bolts Included Yes
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) 1.625 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 27520
Replacement Head Flange Gasket 27520
California Proposition 65 WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov
Close Ratio Steering Box YES

Vehicle Applications

Chevrolet

Camaro

Year

C.I.D.

Liter

Block Type

Cylinders

Fuel Type

Drive Type

1967

283

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1967

400

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1967

305

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1967

350

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1967

327

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1967

302

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

400

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

305

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

283

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

350

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

327

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

302

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

305

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

283

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

350

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

327

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

302

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

400

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

Chevy II

Year

C.I.D.

Liter

Block Type

Cylinders

Fuel Type

Drive Type

1968

302

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

283

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

350

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

327

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

400

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1968

305

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

Nova

Year

C.I.D.

Liter

Block Type

Cylinders

Fuel Type

Drive Type

1969

327

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

400

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

283

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

302

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

350

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1969

305

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1970

305

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1970

302

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1970

327

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1970

350

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1970

283

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1970

400

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1971

350

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1971

305

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1971

302

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1971

283

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1971

327

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1971

400

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1972

283

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1972

302

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1972

305

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1972

400

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1972

350

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)

1972

327

GAS

Vehicle Specific Information
Air Conditioning	No
Power Steering	Yes
Auto Transmission - Column	No
Auto Transmission - Floor	No
Manual Transmission - Column	No
Manual Transmission - Floor	Yes
Footnotes	(1) Without smog injection or injection heads. (103) Will fit with angle plug heads (Chevy aluminum only, L98). (121) Must modify rotary A/C bracket. (234) Design with additional clearance for close ratio steering boxes. (6) Modification to stock exhaust required to retain catalytic converter.
Emissions Notes	1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
Engine Family	SB Chevy 283-400 (Gen 1)