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Since 1952
in 1968 Firebird
in 1968 Firebird
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326, 350, 389, 400, 421, 428, 455, User Tunable

Ships Free

Injection Style: Multi-port

User Tunable : Yes

Self Tuning: Yes

EGR: No

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With Factory Air Conditioning A/C Compatibility

Ships Free

A/C Compatibility: With Factory Air Conditioning

Dash Vent Location: In-dash

Uses Factory Controls: Yes

Drier Included: Yes

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$1,403.99
$1,545.95

389, 400, 421, 428, 455, Assembled Cylinder Head Style

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On Sale

Cylinder Head Style: Assembled

Material Type: Aluminum

Finish: Natural

Combustion Chamber Volume: 72cc

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$1,432.99
$1,593.95

389, 400, 421, 428, 455, Assembled Cylinder Head Style

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On Sale

Cylinder Head Style: Assembled

Material Type: Aluminum

Finish: Natural

Combustion Chamber Volume: 87cc

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$809.99
$1,017.95

326, 350, 389, 400, 421, 428, 455, 800 CFM CFM, Natural

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On Sale

Intake Manifold Type: Dual Plane | High Rise

Carburetor Quantity: One

Carburetor Barrels: 4-Barrel

CFM: 800 CFM

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$324.99
$358.95

326, 350, 389, 400, 455, Carbureted Fuel System Type

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On Sale

Fuel System Type: Carbureted

Intake Manifold Type: Dual Plane

Carburetor Quantity: One

Carburetor Flange Type: 4-Barrel Square Bore

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$543.99
$580.95

326, 350, 389, 400, 455, Carbureted Fuel System Type

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On Sale

Fuel System Type: Carbureted

Intake Manifold Type: Dual Plane

Carburetor Quantity: One

Carburetor Flange Type: Dual: Square and Spread Bore

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389, 400, 421, 428, 455, Carbureted Fuel System Type

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Fuel System Type: Carbureted

Intake Manifold Type: Single Plane

Carburetor Quantity: One

Carburetor Flange Type: 4-Barrel Square Bore

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$427.99
$435.95

326, 350, 389, 400, 421, 428, 455, Powder Coated, Black

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On Sale

Fuel System Type: Carbureted

Intake Manifold Type: Dual Plane

Carburetor Quantity: One

Carburetor Flange Type: Dual: Square and Spread Bore

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$380.99
$447.95

400, 421, 428, 455, EFI Fuel System Type, Natural

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On Sale

Fuel System Type: EFI

Injection Style: Multi-port

Carburetor Flange Type: 4-Barrel Square Bore

RPM Range: 1,500-6,500

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$355.99
$399.95

326, 350, 389, 400, 455, Carbureted Fuel System Type

Ships Free
On Sale

Fuel System Type: Carbureted

Intake Manifold Type: Dual Plane

Carburetor Quantity: One

Carburetor Flange Type: Dual: Square and Spread Bore

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301, 326, 350, 389, 400, 421, 455, Steel, Chrome

On Sale

Valve Cover Height: Tall

Valve Cover Mounting Style: Perimeter Bolt

Valve Cover Top Style: Edelbrock Logo

Material Type: Steel

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326, 350, 389, 400, 421, 428, 455, 2.20" Port Height

Overall Thickness: 0.06"

Port Height: 2.20"

Port Width: 1.15"

Material Thickness: .06"

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$285.99
$329.95

347, 350, 370, 389, 400, 421, 428, 455

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On Sale

Camshaft Type: Hydraulic Flat Tappet

Intake Duration: 308

Exhaust Duration: 320

RPM Range: 1,500-6,500

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$141.99
$147.95

389, 400, 421, 428, 455, Hex Wrench Type, Chromoly

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On Sale

Wrench Type: Hex

Fastener Style : Bolt

Material Type: Chromoly

Cut to Fit: No

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389, 400, 421, 428, 455, Stainless Steel, 5.230" Length

Material Type: Stainless Steel

Valve Head Diameter: 1.660"

Valve Stem Diameter: 0.341"

Length: 5.230"

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$59.99
$63.95

301, 326, 350, 389, 400, 421, 455, Steel, Powder Coated

On Sale

Valve Cover Height: Stock

Valve Cover Mounting Style: Perimeter Bolt

Valve Cover Top Style: Edelbrock Logo

Material Type: Steel

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$238.99
$268.95

326, 350, 389, 400, 428, 455, One-Piece Style, Aluminum

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On Sale

Bolts/Studs Included: No

Style: One-Piece

Logo: Plain

Material Type: Aluminum

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$18.99
$21.95

326, 350, 389, 400, 421, 428, 455

On Sale

Thread Pitch: 3/8-16 X 1-1/4"

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$148.99
$153.95

389, 400, 421, 428, 455, Hex Wrench Type, Chromoly

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On Sale

Wrench Type: Hex

Fastener Style : Bolt

Material Type: Chromoly

Cut to Fit: No

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$39.99
$70.95

389, 400, 421, 428, 455, 4.300" Gasket Bore

On Sale

Gasket Bore: 4.300"

Compressed Thickness: 0.038"

Material Type: Steel Core Laminate

Lock Wire: No

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$62.99
$77.95

287, 316, 326, 347, 350, 370, 389, 400, 421, 455

On Sale

Gasket(s) Included: No

Bolts/Studs Included: No

Timing Chain Style: Double Roller

Retard at Camshaft: 2 degree

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Gasoline Fuel Type, 110 GPH / 416 LPH Free Flow Rate

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On Sale

Fuel Type: Gasoline

Free Flow Rate: 110 GPH / 416 LPH

Maximum Pressure: 6 psi

Fuel Pump Inlet Size: 3/8" NPT

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$312.99
$362.95

400, 428, 455, Mechanical Water Pump Type, Natural

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On Sale

Water Pump Type: Mechanical

Rotation: Clockwise/Standard

Pump Flow: High-Volume

Housing Material: Aluminum

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$311.99
$389.95

400, 428, 455, Mechanical Water Pump Type, Black

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On Sale

Water Pump Type: Mechanical

Rotation: Clockwise/Standard

Pump Flow: High-Volume

Housing Material: Aluminum

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$238.99
$280.95

347, 350, 370, 389, 400, 421, 428, 455

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On Sale

Camshaft Type: Hydraulic Flat Tappet

Intake Duration: 278

Exhaust Duration: 288

RPM Range: Idle-5,500

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$429.99
$525.95

326, 350, 389, 400, 455, Carbureted Fuel System Type

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On Sale

Fuel System Type: Carbureted

Intake Manifold Type: Single Plane

Carburetor Quantity: One

Carburetor Flange Type: 4-Barrel Square Bore

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