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Clearance

Many Engines, 1.36" Overall Length, Hex Wrench Type

Overall Length: 1.36"

Under Head Length: 1"

Thread Pitch: 3/8"-16

Wrench Type: Hex

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Many Engines, 1.12" Overall Length, Allen Wrench Type

Overall Length: 1.12"

Under Head Length: 0.75"

Thread Pitch: 3/8"-16

Wrench Type: Allen

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Many Engines, 1.12" Overall Length, Allen Wrench Type

Overall Length: 1.12"

Under Head Length: 0.75"

Thread Pitch: 3/8"-16

Wrench Type: Allen

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$243.99
$261.95

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

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Temporary Paint

Flange Style: D Port

Primary Tube Diameter: 1-5/8"

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$378.99
$406.95

326, 350, 389, 400, 428, 455, Ceramic Coated, Silver

Ships Free
On Sale

Header Tube Type: Long Tube

Finish: Ceramic Coated

Flange Style: Round Port

Primary Tube Diameter: 1-5/8"

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$516.99
$554.95

326, 350, 389, 400, 421, 428, 455, D Port Flange Style

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Silver ceramic coated

Flange Style: D Port

Primary Tube Diameter: 1-5/8"

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$759.99
$1,150.08

326, 389, 400, 428, Full-length Header Tube Type, Steel

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Metallic Ceramic Coating

Flange Style: D Port

Primary Tube Diameter: 1-3/4"

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$33.99
$35.83

Pontiac V8, Chevy Small Block V8, Chrysler Big Block V8

On Sale
Video Available

Thread Pitch: 3/8"-16

Material Type: Stainless Steel

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$837.99
$898.95

326, 350, 389, 400, 421, 428, 455, D Port Flange Style

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Silver ceramic coated

Flange Style: D Port

Primary Tube Diameter: 1-3/4"

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$849.99
$1,286.59

326, 350, 389, 400, 428, 455, Metallic Ceramic Coating

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Metallic Ceramic Coating

Flange Style: Round Port

Primary Tube Diameter: 1-7/8"

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$700.99
$990.18

389, 400, 421, 428, Full-length Header Tube Type, Steel

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Hi-Temp Black

Flange Style: D Port

Primary Tube Diameter: 1-3/4"

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$759.99
$1,150.08

350, 400, 428, 455, Full-length Header Tube Type, Steel

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Metallic Ceramic Coating

Flange Style: D Port

Primary Tube Diameter: 1-3/4"

Quick View
$611.99
$656.95

326, 350, 389, 400, 421, 428, 455, D Port Flange Style

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Silver ceramic coated

Flange Style: D Port

Primary Tube Diameter: 1-5/8"

Quick View
$552.99
$593.95

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

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Temporary Paint

Flange Style: D Port

Primary Tube Diameter: 1-3/4"

Quick View
$209.99
$224.95

Pontiac V8, Oldsmobile V8, Long Tube Header Tube Type

Ships Free
On Sale

Header Tube Type: Long Tube

Finish: Painted

Flange Style: D Port

Primary Tube Diameter: 1-5/8"

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Many Engines, 1.03" Overall Length, Hex Wrench Type

Overall Length: 1.03"

Under Head Length: 0.75"

Thread Pitch: 3/8"-16

Wrench Type: Hex

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Many Engines, 1.12" Overall Length, Allen Wrench Type

Overall Length: 1.12"

Under Head Length: 0.75"

Thread Pitch: 3/8"-16

Wrench Type: Allen

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326, 350, 389, 400, 421, 428, 455, Oval Port Style

On Sale

Port Style: Oval

Port Height: 1.875"

Port Width: 1.5"

Hardware Included: Yes

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$35.99
$38.14

Pontiac V8, Chevy Small Block V8, Chrysler Big Block V8

On Sale

Overall Length: 1.5"

Thread Pitch: 3/8"-16

Thread Length: 1.5"

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$273.99
$293.95

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

Ships Free
On Sale

Header Tube Type: Full-length

Finish: Temporary Paint

Flange Style: D Port

Primary Tube Diameter: 1-5/8"

Quick View

Many Engines, 3/8"-16 Thread Pitch, Steel

Thread Pitch: 3/8"-16

Wrench Type: 12 Point

Thread Length (2): .625"

Material Type: Steel

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$28.99
$30.74

Pontiac V8, Chevy Small Block V8, Chrysler Big Block V8

On Sale

Under Head Length: 0.75"

Thread Pitch: 3/8"-16

Material Type: Stainless Steel

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$41.99
$44.43

326, 350, 389, 400, 421, 428, 455, D-port Port Style

On Sale

Gasket Material: Copper

Port Style: D-port

Port Height: 2"

Port Width: 1.55"

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Many Engines, 0.875" Under Head Length, Steel

Under Head Length: 0.875"

Thread Pitch: 3/8"-16

Material Type: Steel

Finish: Gold Iridited

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