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Doug's Headers D567-R Full Length Header, 1-7/8 In, 64-72 GTO, Raw
Doug's Headers D567-R Full Length Header, 1-7/8 In, 64-72 GTO, Raw

Doug's Headers D567-R Full Length Header, 1-7/8 In, 64-72 GTO, Raw

326 Pontiac V8, 350 Pontiac V8, 389 Pontiac V8, 400 Pontiac V8, 428 Pontiac V8, 455 Pontiac V8

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Doug's Headers D567-R Full Length Header, 1-7/8 In, 64-72 GTO, Raw
Doug's Headers D567-R Full Length Header, 1-7/8 In, 64-72 GTO, Raw
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We estimate this item will ship on or before May 25th.
Part # 447D567R
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 2 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.

Details

MFG. Part #:
D567-R
GTIN Code:
694342509811

Info

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

Application

1964-1966 Pontiac GTO 6.4L/389 V8
1967-1972 Pontiac GTO 6.6L/400 V8
1970-1972 Pontiac GTO 7.5L/455 V8
1964-1967 Pontiac LeMans 5.3L/326 V8
1968-1971 Pontiac LeMans 5.7L/350 V8
1968-1971 Pontiac LeMans 6.6L/400 V8
1970-1971 Pontiac LeMans 7.5L/455 V8
1968-1969 Pontiac LeMans 7L/428 V8
1964-1967 Pontiac Tempest 5.3L/326 V8
1968-1970 Pontiac Tempest 5.7L/350 V8
1968-1970 Pontiac Tempest 6.6L/400 V8
1967-1969 Pontiac Tempest 7L/428 V8

Notes

  • Doug's Headers D567-R 1 7/8" 4-Tube Full Length Header Pontiac GTO 326-455 64-72 Raw Steel
  • Raw Steel
  • exc. states w/Calif. emission stds
  • Fits Edelbrock Performer
  • RAM-Air
  • Super Duty
  • HO heads only
  • removal/modification of locking Strg column reqd
  • factory heads w/o end bolt holes must be drilled and tapped
  • W/Turbo 400 use short modulator valve
  • Use 64 Z-Bar
  • removal/modification of locking Strg column req
  • factory heads w/o end bolt holes must be drilled/tapped
  • with Floor Shifter
  • with A/C
  • For Off-Road Use Only
Some parts are not legal for use in California or other states with similar laws/regulations

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