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The iconic W-Series big block engines from General Motors could always be spotted by the uniquely shaped heads and rocker covers for a distinctive appearance. Three different variations of the W-Series engines existed with the 348, 409, and 427 big block. Arguably the most popular of the three was the high performance 409, built with drag racing and high torque loads in mind. Today, the 409 is still a highly sought after engine for restorers, rodders, and racers. The folks here at Speedway Motors know what it takes to bring that old school big block back to life and you can be sure to find what you’re looking for with only the top brands and parts you need for your classic W-Series big block Chevy.

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396, 427, 348, 409, Hardware Included, Aluminum

Hardware Included: Yes

Gasket(s) Included: Yes

Thread Pitch: 3/4-16

Material Type: Aluminum

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Universal Fit, 50 mm Inside Diameter

Inside Diameter: 50 mm

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Chevy Big Block V8, Chevy W-Series V8, Bert, Brinn

Overall Diameter: 4.50"

Overall Thickness: 1.25"

Spline Count: 10

Spline OD: 1.38"

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Universal Fit, Crossmember Motor Mount Type

Motor Mount Type: Crossmember

Application Compatibility: Engine Swap

Attachment Style: Bolt-on

Mount Material: Steel

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396, 402, 427, 454, 496, 502, 572, 348, 409, Polished

Material Type: Stainless Steel

Finish: Polished

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396, 402, 427, 454, 496, 348, 409

Lifter Body Diameter: 0.842"

Overall Length: 1.9945"

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Many Engines, 2.88" Assembled Height, .65" Base Height

Assembled Height: 2.88"

Base Height: .65"

Hose ID: 1.50"

Angle: 90 degree

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Many Engines, Adapter Mount Motor Mount Type

Motor Mount Type: Adapter Mount

Application Compatibility: Engine Swap

Attachment Style: Bolt-on

Mount Material: Steel

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Many Engines, Adapter Mount Motor Mount Type

Motor Mount Type: Adapter Mount

Application Compatibility: Engine Swap

Attachment Style: Bolt-on

Mount Material: Steel

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Many Engines, 4.20" Assembled Height, .65" Base Height

On Sale

Assembled Height: 4.20"

Base Height: .65"

Hose ID: 1.50"

Angle: 45 degree

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Many Engines, 2.13" Assembled Height, .62" Base Height

Assembled Height: 2.13"

Base Height: .62"

Hose ID: 1.55"

Angle: Straight

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Many Engines, Adapter Mount Motor Mount Type

Motor Mount Type: Adapter Mount

Application Compatibility: Engine Swap

Attachment Style: Bolt-on

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Many Engines, Adapter Mount Motor Mount Type, Natural

Motor Mount Type: Adapter Mount

Application Compatibility: Engine Swap

Attachment Style: Bolt-on

Mount Material: Steel

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Many Engines, Synthetic Oil Type, 10W40 Oil Weight

On Sale

Oil Type: Synthetic

Oil Weight: 10W40

ZDDP Enhanced: No

API Rating: SN Plus

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Many Engines, 4.50" Overall Diameter, 10 Spline Count

Overall Diameter: 4.50"

Overall Thickness: 1.25"

Spline Count: 10

Spline OD: 1.13"

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$39.98
$44.98

Many Engines, Conventional Oil Type, 10W40 Oil Weight

On Sale

Oil Type: Conventional

Oil Weight: 10W40

ZDDP Enhanced: Yes

Liquid Measurement: 5 quarts

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265, 283, 302, 327, 350, 396, 427, 348, 409

Overall Diameter: 3.875"

Hardware Included: No

Gasket(s) Included: No

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396, 402, 427, 454, 409, Gasoline Fuel Type, Aluminum

Fuel Type: Gasoline

Free Flow Rate: 80 GPH / 303 LPH

Maximum Pressure: 8 psi

Fuel Pump Inlet Size: 1/4 inch NPT female

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348, 409, Composite Gasket Material

Gasket Material: Composite

Overall Thickness: 0.312"

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348, 409, 0.06" Overall Thickness, 2.5" Overall Height

Overall Thickness: 0.06"

Overall Height: 2.5"

Overall Width: 1.31"

Gasket Material: Composite

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396, 402, 427, 454, 427, 428, 429, 410, 351C, 409

Video Available

Under Head Length: 0.75"

Thread Pitch: 3/8"-16

Material Type: Stainless Steel

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$94.93
$106.93

Many Engines, Synthetic Oil Type, 10W30 Oil Weight

On Sale

Oil Type: Synthetic

Oil Weight: 10W30

ZDDP Enhanced: Yes

Liquid Measurement: 6 quarts

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265, 283, 302, 307, 327, 350, 396, 427, 348, 409

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Many Engines, Synthetic Oil Type, 20W50 Oil Weight

Oil Type: Synthetic

Oil Weight: 20W50

Liquid Measurement: 6 quarts

Filter Included: Yes

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$14.99
$17.39

348, 409, Square Port Port Style, 1.5" Port Height

On Sale

Port Style: Square Port

Port Height: 1.5"

Port Width: 1.5"

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348, 409, Steel, Black Oxide, Black

Material Type: Steel

Finish: Black Oxide

Guideplate Pushrod Size: 3/8 in."

Guide Plate Style: Raised

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$35.99
$41.98

Many Engines, Conventional Oil Type, 10W30 Oil Weight

On Sale

Oil Type: Conventional

Oil Weight: 10W30

ZDDP Enhanced: Yes

Liquid Measurement: 5 quarts

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