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$813.90
Doug's Headers D570 Full Length Header 1-3/4 In, 70-81 Firebird, CC
Doug's Headers D570 Full Length Header 1-3/4 In, 70-81 Firebird, CC

Doug's Headers D570 Full Length Header 1-3/4 In, 70-81 Firebird, CC

350 Pontiac V8, 400 Pontiac V8, 455 Pontiac V8, 403 Oldsmobile V8, Full-length Header Tube Type

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Doug's Headers D570 Full Length Header 1-3/4 In, 70-81 Firebird, CC
Doug's Headers D570 Full Length Header 1-3/4 In, 70-81 Firebird, CC
Doug's Headers D570 Full Length Header 1-3/4 In, 70-81 Firebird, CC
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Doug's Headers D570 Full Length Header 1-3/4 In, 70-81 Firebird, CC
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We estimate this item will ship on or before August 16th.
Part # 447D570
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Details

Header Tube Type:
Full-length
Finish:
Ceramic Coated
Flange Style:
Standard
Primary Tube Diameter:
1-3/4"
Material Type:
Steel
Color:
Silver
Weld-Up:
No
Exhaust Port Shape:
D-port
MFG. Part #:
D570
Collector Diameter:
3 Inch
Hardware Included:
Yes
Gasket(s) Included:
Yes
Sold in Quantity:
Pair
GTIN Code:
694342509866

Info

Doug's PASSENGER CAR HEADERS Long Tube Metallic Ceramic CoatedHeader development and design is complex and requires a substantial amount of time and resources to do the job right! Many manufacturers are unwilling to make the commitment and instead offer compromised headers at lower prices. Doug's will not compromise performance, quality or fit to compete with inferior designs at cheap prices. Every Doug's header is tuned with the proper tube size and length to efficiently remove all the exhaust from each cylinder, reducing pumping losses resulting in a dramatic increases in horsepower and torque. Doug's headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.

  • 3/8" Thick machined flanges... no warping
  • CNC mandrel bent tubes... accurate fit & better flow
  • Precision formed long transition collectors and long tube design... reduces backpressure and increases higher RPM horsepower
  • Heavy 16 gauge tubing... longer life
  • Tubes are pre-polished to remove scratches and the header isfinished with a Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees

Application

1970-1979 Pontiac Firebird 5.7L/350 V8
1970-1979 Pontiac Firebird 6.6L/400 V8
1977-1979 Pontiac Firebird 6.6L/403 V8
1971-1976 Pontiac Firebird 7.5L/455 V8

Notes

  • Doug's Headers D570 1 3/4" 4-Tube Full Length Header Pontiac Firebird 326-455 70-81 Metallic Ceramic Coating
  • Ceramic Coated
  • Collector: 3
  • Port: D
  • Primary: 1 3/4
  • exc. states w/Calif. emission stds
  • fits W/Milodon oil pans 30355
  • 31660
  • 31665
  • removal/modification of locking steering column reqd
  • factory heads w/o end bolt holes must be drilled and tapped
  • with Floor Shifter
  • with A/C
  • For Off-Road Use Only

Charts

Installation Instructions (PDF)

Important Messages

  • This item ships directly from the manufacturer. It may take an additional 15 business days for Dougs Headers to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
Some parts are not legal for use in California or other states with similar laws/regulations

Reviews

Q & A

Videos & Articles
  • Maintaining your headers is an important part of any hot rod. Pat gives some tips and demonstrates how well Purple Metal Polish works for keeping your headers looking great.
  • Watch our video on the ceramic coating process for Armor Hot Coating. Headers coated with Armor Hot Coating protect your car without sacrificing looks.
  • Which size of headers should I use? Short or long tube headers? Etc. Learn how to answer these exhaust questions and choose the right header with our expert guide.
  • Jeremy explains the different options of headers that Speedway Motors offers for Demolition Derby cars. Watch this video to see a variety of options and the benefits of certain headers.
  • Hooker headers are installed in a 1967 Pontiac Firebird for increased power and a boost in performance. See how to work through fitment of the steering box, clutch Z bar and starter.
  • In this Tech Tip, John explains the design behind a set of headers destined for a Tri-5 using a traditional rack and pinion style steering system.
  • That fresh engine deserves all new exhaust bits. Be sure to have a look at our rundown on selecting the best setup for headers, exhaust, and mufflers for your ride here.

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