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The Mark IV big block was the culmination of Chevrolet's performance engine development. Featured in early Camaros, Novas, Chevelles, Monte Carlos, Bel Airs, Impalas, and Corvettes, the popular 396 powerplant terrorized local drag strips and gave high performance engines a new standard. The success was short lived due to fuel shortages and emission standards. But fear not! The horsepower happy big block lives on and Speedway Motors is your source for performance parts and accessories for your 396 Chevy engine.

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Universal Fit, 50 mm Inside Diameter

Inside Diameter: 50 mm

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Chevy Small Block V8, Chevy Big Block V8

On Sale
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Universal Fit, 50 mm Inside Diameter

Inside Diameter: 50 mm

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Chevy Small Block V8, Chevy Big Block V8

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Chevy Small Block V8, Chevy Big Block V8

Thread Pitch: 7/16"

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Many Engines, Tapered Spark Plug Seat Style, Resistor

On Sale

Spark Plug Seat Style: Tapered

Spark Plug Reach: .433"

Thread Pitch: 14mm

Resistor: Yes

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Many Engines, Tapered Spark Plug Seat Style, Resistor

On Sale

Spark Plug Seat Style: Tapered

Spark Plug Reach: .431"

Thread Pitch: 14mm

Resistor: Yes

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Many Engines, Tapered Spark Plug Seat Style, Resistor

On Sale

Spark Plug Seat Style: Tapered

Spark Plug Reach: .433"

Thread Pitch: 14mm

Resistor: Yes

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396, 402, 427, 454, 1/4-20 x .75" Thread Pitch, Steel

Thread Pitch: 1/4-20 x .75"

Material Type: Steel

Finish: Black

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396, 402, 427, 454, 1/4-20 x .75" Thread Pitch, Steel

Thread Pitch: 1/4-20 x .75"

Material Type: Steel

Finish: Silver

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Chevy Small Block V8, Chevy Big Block V8

On Sale
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396, 402, 427, 454, 496, 502, 572

Garage Sale
Clearance
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Many Engines

On Sale
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Chevy Small Block V8, Chevy Big Block V8

On Sale
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Chevy Small Block V8, Chevy Big Block V8

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396, 402, 427, 454, 1/4-20 x 3.37" Thread Pitch, Steel

Thread Pitch: 1/4-20 x 3.37"

Material Type: Steel

Finish: Silver

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396, 402, 427, 454, 1/4-20 x 3.37" Thread Pitch, Steel

Thread Pitch: 1/4-20 x 3.37"

Material Type: Steel

Finish: Black

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396, 402, 427, 454, Gasket(s) Included

On Sale

Gasket(s) Included: Yes

Hardware Included: Yes

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65-74 Chevy, 0.125" Tubing Diameter, Brass

Angle: Straight

Fitting End A: 1/8" Tube

Fitting End B: 1/8" NPT Male

Tubing Diameter: 0.125"

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Many Engines, Hardware Included, Chromoly, Black Oxide

On Sale

Hardware Included: Yes

Material Type: Chromoly

Finish: Black Oxide

Color: Black

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396, 402, 427, 454, 496, 1.9" Overall Length

On Sale
Garage Sale

Overall Length: 1.9"

Thread Length: 0.75"

Thread Length (2): 0.75"

Finish: Black Oxide

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Chevy Small Block V8, Chevy Big Block V8

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396, 402, 427, 454, .060" Overall Thickness

Video Available

Overall Thickness: .060"

Port Height: 1.90"

Port Width: 2.20"

Port Style: Oval

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396, 402, 427, 454, 1.88" Port Height, 1.81" Port Width

Port Height: 1.88"

Port Width: 1.81"

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396, 402, 427, 454, 496, 502

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396, 402, 427, 454, 496, 502, 572, 260, 289, 302, 351W

Overall Diameter: 2.13"

Material Type: Aluminum

Material Thickness: 0.04"

Finish: Natural

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Chevy Small Block V8, Chevy Big Block V8, Steel

Material Type: Steel

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283, 302, 307, 327, 350, 400, 396, 402, 427, 454

On Sale
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230, 292, 305, 396, 153, 13/16-16 Thread Pitch

Thread Pitch: 13/16-16

Overall Height: 3.406"

Outside Diameter: 3.688"

Material Type: High Flow Premium Media

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Many Engines, 13/16-16 Thread Pitch

Thread Pitch: 13/16-16

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Chevy Small Block V8, Chevy Big Block V8

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396, 402, 427, 454, 496, 502, 572, 1.50" Overall Length

Overall Length: 1.50"

Material Type: Aluminum

Finish: Anodized

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Chevy Small Block V8, Chevy Big Block V8, Chromoly

On Sale

Bolt Length: 4.25"

Under Head Length: 3.75"

Wrench Type: Hex

Material Type: Chromoly

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Many Engines, 1.05" Overall Length, Hex Wrench Type

Overall Length: 1.05"

Under Head Length: 0.75"

Thread Pitch: 3/8"-16

Wrench Type: Hex

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Many Engines, 5.719" Overall Height, Bypass Valve

Overall Height: 5.719"

Outside Diameter: 3.688"

Material Type: High Flow Premium Media

Removal Nut Included: No

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396, Chrome, 0.75" Flange I.D., 0.75" Flange Length

On Sale

Outside Diameter: 3"

Finish: Chrome

Flange I.D.: 0.75"

Flange Length: 0.75"

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Chevy Small Block V8, Chevy Big Block V8

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$10.95
$11.19

396, 402, 427, 454, Steel, Black Oxide, Black

On Sale

Material Type: Steel

Finish: Black Oxide

Guideplate Pushrod Size: 0.437"

Guide Plate Style: Raised

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$10.95
$11.19

Many Engines, Hydraulic Flat Tappet Lifter Type

On Sale

Lifter Type: Hydraulic Flat Tappet

Link Bar: None

Lifter Link Bars Included: No

Lifter Body Diameter: 0.842"

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396, 402, 427, 454, 496, 502, 572

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Many Engines, 1.05" Overall Length, Hex Wrench Type

Overall Length: 1.05"

Under Head Length: 0.75"

Thread Pitch: 3/8"-16

Wrench Type: Hex

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Many Engines, 1.00" Under Head Length, Chromoly, Black

On Sale

Under Head Length: 1.00"

Thread Pitch: 7/16"-20

Wrench Type: 12 Point

Material Type: Chromoly

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Chevy Small Block V8, Chevy Big Block V8

On Sale

Overall Length: 2.42"

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Many Engines, 1" Under Head Length, Steel, Zinc

On Sale

Under Head Length: 1"

Thread Pitch: 3/8"-16

Material Type: Steel

Finish: Zinc

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396, 427, 454, 413, 426 Wedge, 440

Hardware Included: No

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Many Engines, 1/2"-20 Thread Pitch, Gasket(s) Included

Thread Pitch: 1/2"-20

Gasket(s) Included: Yes

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$11.95
$12.44

Many Engines, Hydraulic Flat Tappet Lifter Type

On Sale

Lifter Type: Hydraulic Flat Tappet

Link Bar: None

Lifter Link Bars Included: No

Lifter Body Diameter: 0.842"

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327, 350, 383, 400, 396, 402, 427, 454, 1.57" Hose ID

Assembled Height: 2.25"

Base Height: .50"

Hose ID: 1.57"

Tube Length: 2.45"

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396, 402, 427, 454, 496, 502, 9.25" Overall Length

Overall Length: 9.25"

Overall Diameter: .63"

Material Type: Steel

Finish: Black Oxide

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366, 396, 402, 427, 454, 496, Polished

Finish: Polished

Overall Thickness: 0.38"

Gasket(s) Included: No

Hardware Included: No

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327, 350, 383, 400, 396, 402, 427, 454, 1.58" Hose ID

Assembled Height: 2.38"

Base Height: .48"

Hose ID: 1.58"

Tube Length: 2.66"

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396, 402, 427, 454, 496, 502, 572

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Chevy Small Block V8, Chevy Big Block V8, 1.50" Hose ID

Assembled Height: 2.75"

Base Height: .37"

Hose ID: 1.50"

Angle: 50 degree

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Many Engines, 1.12" Bolt Length, .75" Under Head Length

On Sale

Bolt Length: 1.12"

Under Head Length: .75"

Wrench Type: 12 Point

Material Type: Chromoly

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$11.99
$14.62

Many Engines, 0.75" Under Head Length, Steel, Zinc

On Sale

Under Head Length: 0.75"

Thread Pitch: 3/8"-16

Material Type: Steel

Finish: Zinc

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$11.99
$19.27

Chevy Small Block V8, Chevy Big Block V8

On Sale

Cap Terminal Style: HEI / Male

Cap Type: HEI / Male

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Chevy Small Block V8, Chevy Big Block V8

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Chevy Small Block V8, Chevy Big Block V8

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396, 402, 427, 454, Composite

Material Type: Composite

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