Doug's Headers D570-R Full Length Header 1-3/4 In, 70-81 Firebird, Raw
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Doug's PASSENGER CAR HEADERS Long Tube Raw Steel Header 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 is left unfinished (raw steel) for individual customizing
Application1970-1979 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
- Doug's Headers D570-R 1 3/4" 4-Tube Full Length Header Pontiac Firebird 326-455 70-81 Raw Steel
- Raw Steel
- Collector: 3
- Port: D
- Primary: 1 3/4
- exc. states w/Calif. emission stds
- fits W/Milodon oil pans 30355
- 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
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Q & A
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.
Our Tru-Ram Exhaust Manifolds are one of our most popular items. Tim provides more details about them and gives you a great look at them.
Tim gives a little bit of history on the Ford Y Block and shows some of the parts we have to offer.