Doug's Headers D451-SS 304 Stainless Long Tube Header 62-74 Various Mopar 383-400 'B' Motor 1 3/4" Primary 3" Collector

Doug's Headers D451-SS 304 Stainless Long Tube Header 62-74 Various Mopar 383-400 'B' Motor 1 3/4" Primary 3" Collector

Part Number: D451-SS
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Features & Benefits

  • Natural stainless-steel finish offers superior resistance to rust and corrosion
  • 3/8" thick 304 stainless machine flanges to prevent warping
  • CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
  • Precision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower

Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market.


For the enthusiast who demands the best, Doug's Headers are not just components; they're a statement of excellence, a commitment to leading-edge performance, and a nod to the glory days of muscle cars and drag racing. Join the ranks of champions. Experience the unmatched quality and performance of Doug's Headers today.

Specifications

Finish 304 Stainless Steel
Material 304 Stainless Steel
Design Full-length
Primary Tubing Diameter 1.75 Inches
Collector Port Diameter 3.0 Inches
Port Shape SAP
Tube Wall Thickness 16 Gauge
Flange Thickness 0.375 Inches
Collector Attachment 3-Bolt Flange
Oxygen Sensor Port No
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Grade Type Performance
Color Silver
Sheen Level Satin

Shipping & Delivery

Our ignition and exhaust products ship from our warehouse in Lenexa, KS. Our normal shipping time is 2-3 business days for in-stock parts.

 Shipping Class Order Value Shipping Cost
UPS Ground $0 - 49.99 $6.99 flat rate
UPS Ground $50 - 98.99 $7.49 flat rate
UPS Ground $99+ Free

  • At this time, PerTronix does not offer expedited shipping options from our website.

  • All packages must be inspected upon receipt for any missing or damaged goods and claims for such must be made within 7 days of receipt.

  • PerTronix does not currently ship our products internationally from our web store. For international orders call 909-599-5955 or connect with us here.

  • Once an item has tracking info, it cannot be cancelled. If you decide you don’t want the items after shipment, please take receipt of the item and process it via our return policy. Thank you for understanding!

Returns, Replacements & Warranty

Returns at Pertronix are accepted within 90 days of purchase with prior authorization, ensuring items are in new, resalable condition. To initiate a return, call for an RGA and follow provided instructions. Customers are responsible for return shipping, using a trackable method.

Refunds exclude initial shipping and handling fees and may be subject to a restocking fee. For defective or damaged items, contact Pertronix directly. We are not responsible for user-initiated damage/loss of parts.

For complete details, visit our Returns page.

Warranty

All Doug's headers and exhaust products are guaranteed, to the original purchaser, to be free of defects in materials and workmanship for one year. This warranty covers the replacement or repair of the product only and does not cover the cost of removal and installation, customer applied aftermarket coatings or any other discoloration or corrosion of finished surfaces. Damage or product failure resulting from collision,improper installation, off-road use, road hazards, the use of exhaust insulting wrap or like products or rust occurring after installation, is not covered by the warranty. Should a part become defective it should be returned to the original selling retailer and must be accompanied with the original sales receipt. If there is no retailer in your area, call the factory for a return authorization and return your part prepaid to the factory for inspection. PerTronix reserves the right to replace or repair the alleged defective part and return the part freight collect.

Reviews

Doug's Headers D451-SS 304 Stainless Long Tube Header 62-74 Various Mopar 383-400 'B' Motor 1 3/4" Primary 3" Collector

Doug's Headers D451-SS 304 Stainless Long Tube Header 62-74 Various Mopar 383-400 'B' Motor 1 3/4" Primary 3" Collector

Part Number: D451-SS
Regular price $1,021.95
Sale price $1,021.95 Regular price

Part Number: D451-SS

$100 MAIL-IN REBATE Learn more

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Product details

Need help? Call us at 909-599-5955

  • Free shipping on $99+ orders in lower 48 states
  • 90-day return policy
  • We’re here to help! Call us on 909-599-5955
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Features & Benefits

  • Natural stainless-steel finish offers superior resistance to rust and corrosion
  • 3/8" thick 304 stainless machine flanges to prevent warping
  • CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
  • Precision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower

Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market.


For the enthusiast who demands the best, Doug's Headers are not just components; they're a statement of excellence, a commitment to leading-edge performance, and a nod to the glory days of muscle cars and drag racing. Join the ranks of champions. Experience the unmatched quality and performance of Doug's Headers today.

Specifications

Finish 304 Stainless Steel
Material 304 Stainless Steel
Design Full-length
Primary Tubing Diameter 1.75 Inches
Collector Port Diameter 3.0 Inches
Port Shape SAP
Tube Wall Thickness 16 Gauge
Flange Thickness 0.375 Inches
Collector Attachment 3-Bolt Flange
Oxygen Sensor Port No
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Grade Type Performance
Color Silver
Sheen Level Satin

Shipping & Delivery

Our ignition and exhaust products ship from our warehouse in Lenexa, KS. Our normal shipping time is 2-3 business days for in-stock parts.

 Shipping Class Order Value Shipping Cost
UPS Ground $0 - 49.99 $6.99 flat rate
UPS Ground $50 - 98.99 $7.49 flat rate
UPS Ground $99+ Free

  • At this time, PerTronix does not offer expedited shipping options from our website.

  • All packages must be inspected upon receipt for any missing or damaged goods and claims for such must be made within 7 days of receipt.

  • PerTronix does not currently ship our products internationally from our web store. For international orders call 909-599-5955 or connect with us here.

  • Once an item has tracking info, it cannot be cancelled. If you decide you don’t want the items after shipment, please take receipt of the item and process it via our return policy. Thank you for understanding!

Returns, Replacements & Warranty

Returns at Pertronix are accepted within 90 days of purchase with prior authorization, ensuring items are in new, resalable condition. To initiate a return, call for an RGA and follow provided instructions. Customers are responsible for return shipping, using a trackable method.

Refunds exclude initial shipping and handling fees and may be subject to a restocking fee. For defective or damaged items, contact Pertronix directly. We are not responsible for user-initiated damage/loss of parts.

For complete details, visit our Returns page.

Warranty

All Doug's headers and exhaust products are guaranteed, to the original purchaser, to be free of defects in materials and workmanship for one year. This warranty covers the replacement or repair of the product only and does not cover the cost of removal and installation, customer applied aftermarket coatings or any other discoloration or corrosion of finished surfaces. Damage or product failure resulting from collision,improper installation, off-road use, road hazards, the use of exhaust insulting wrap or like products or rust occurring after installation, is not covered by the warranty. Should a part become defective it should be returned to the original selling retailer and must be accompanied with the original sales receipt. If there is no retailer in your area, call the factory for a return authorization and return your part prepaid to the factory for inspection. PerTronix reserves the right to replace or repair the alleged defective part and return the part freight collect.

Reviews

Applications

Year / Make / Model 1970-1971 Dodge Challenger
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1972-1974 Dodge Challenger
Engine Type V8
Engine Size(s) Liters: 6.6
Cubic Inches: 400
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1966-1971 Dodge Charger
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1972-1974 Dodge Charger
Engine Type V8
Engine Size(s) Liters: 6.6
Cubic Inches: 400
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1965-1971 Dodge Coronet
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1972-1974 Dodge Coronet
Engine Type V8
Engine Size(s) Liters: 6.6
Cubic Inches: 400
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1970-1971 Plymouth Barracuda
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1962-1970 Plymouth Belvedere
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1970-1971 Plymouth Cuda
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1968 Plymouth GTX
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1971 Plymouth GTX
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1965-1971 Plymouth Satellite
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1972-1974 Plymouth Satellite
Engine Type V8
Engine Size(s) Liters: 6.6
Cubic Inches: 400
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1962-1965 Plymouth Fury
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1968-1971 Plymouth Road Runner
Engine Type V8
Engine Size(s) Liters: 6.3
Cubic Inches: 383
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

Year / Make / Model 1972-1974 Plymouth Road Runner
Engine Type V8
Engine Size(s) Liters: 6.6
Cubic Inches: 400
Notes
  • Designed for original heads (906 or 915 castings), 1975 and later model heads may require modification to flange.

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