Doug's Headers - D322-B

Doug's Headers D322-B 2" 4-Tube Full Length Header Chevrolet Chevelle Big Block Chevrolet 64-67 Hi-Temp Black Coating

Doug's Headers D322-B 2" 4-Tube Full Length Header Chevrolet Chevelle Big Block Chevrolet 64-67 Hi-Temp Black Coating

Part Number: D322-B / UPC 694342542757
Skip to product information

Features & Benefits

  • 3/8" Thick machined flanges to prevent warping
  • Precision formed long transition collectors and long tube design reduces backpressure and increases higher RPM horsepower
  • Heavy duty 16-gauge tubing for long life
  • Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating

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 Hi-Temp Black Coating
Material Steel
Design Full-length
Primary Tubing Diameter 2.0 IN
Collector Port Diameter 3.5 IN
Port Shape SAP
Tube Wall Thickness 16 Gauge
Flange Thickness 0.375 IN
Collector Attachment 3-Bolt Flange
EGT Port No
Oxygen Sensor Port No
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Color Black
Sheen Level Matte

Installation instructions

Instruction Manual
Installation Instructions

Download PDF

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.

Returns & Replacements

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.

Reviews

Doug's Headers - D322-B

Doug's Headers D322-B 2" 4-Tube Full Length Header Chevrolet Chevelle Big Block Chevrolet 64-67 Hi-Temp Black Coating

Doug's Headers D322-B 2" 4-Tube Full Length Header Chevrolet Chevelle Big Block Chevrolet 64-67 Hi-Temp Black Coating

Part Number: D322-B / UPC 694342542757
Regular price $868.45
Sale price $868.45 Regular price

Part Number: D322-B / UPC 694342542757
Does This part fit My vehicle?
View All Vehicle Applications

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
Emissions code

Emissions Code

Continue Reading to Understand Emissions Codes

View full details

Features & Benefits

  • 3/8" Thick machined flanges to prevent warping
  • Precision formed long transition collectors and long tube design reduces backpressure and increases higher RPM horsepower
  • Heavy duty 16-gauge tubing for long life
  • Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating

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 Hi-Temp Black Coating
Material Steel
Design Full-length
Primary Tubing Diameter 2.0 IN
Collector Port Diameter 3.5 IN
Port Shape SAP
Tube Wall Thickness 16 Gauge
Flange Thickness 0.375 IN
Collector Attachment 3-Bolt Flange
EGT Port No
Oxygen Sensor Port No
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Color Black
Sheen Level Matte

Installation instructions

Instruction Manual
Installation Instructions

Download PDF

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.

Returns & Replacements

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.

Reviews

Applications

Year / Make / Model 1970-1972 Chevrolet Biscayne
Engine Type V8
Engine Size(s) Cubic Inches: 402, 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1972 Chevrolet Brookwood
Engine Type V8
Engine Size(s) Cubic Inches: 402, 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1968-1969 Chevrolet C10 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 Chevrolet C10 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1973-1974 Chevrolet C10 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1968-1969 Chevrolet C20 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 Chevrolet C20 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1973-1974 Chevrolet C20 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 Chevrolet Kingswood
Engine Type V8
Engine Size(s) Cubic Inches: 402, 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1965-1970 Chevrolet Chevelle
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1973 Chevrolet Chevelle
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1972 Chevrolet Chevelle
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1975 Chevrolet Bel Air
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1972 Chevrolet Bel Air
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1975-1980 Chevrolet C10
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1968-1969 Chevrolet C10 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 Chevrolet C10 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1973-1980 Chevrolet C10 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1975-1986 Chevrolet C20
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1968-1969 Chevrolet C20 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 Chevrolet C20 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1973-1986 Chevrolet C20 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 Chevrolet Camaro
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1976 Chevrolet Caprice
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1972 Chevrolet Caprice
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1966-1970 Chevrolet El Camino
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1973 Chevrolet El Camino
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1972 Chevrolet El Camino
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1976 Chevrolet Impala
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1972 Chevrolet Impala
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1965-1967 Chevrolet Malibu
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1973-1975 Chevrolet Malibu
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1975 Chevrolet Monte Carlo
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1970-1972 Chevrolet Monte Carlo
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • Does not fit with power glide transmission.

Year / Make / Model 1968-1969 GMC C15/C1500 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 GMC C15/C1500 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1973-1974 GMC C15/C1500 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1968-1969 GMC C15/C1500 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 GMC C15/C1500 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1973-1974 GMC C15/C1500 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1968-1969 GMC C25/C2500 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 GMC C25/C2500 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1973-1974 GMC C25/C2500 Pickup
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1968-1969 GMC C25/C2500 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 396
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1970-1972 GMC C25/C2500 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1973-1974 GMC C25/C2500 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1975-1978 GMC C15
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1975-1978 GMC C15 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1975-1978 GMC C25
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1975-1978 GMC C25 Suburban
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1971-1975 GMC Sprint
Engine Type V8
Engine Size(s) Cubic Inches: 454
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1971-1972 GMC Sprint
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1974-1975 GMC Sprint
Engine Type V8
Engine Size(s) Cubic Inches: 402
Notes
  • Big block frame stands and motor mounts required for proper fit.
  • This long tube header has excellent ground clearance with collector above the bottom of the frame rails.
  • Will work with 4L60E and 4L80E transmissions.

Year / Make / Model 1967-1981 Pontiac Firebird
Engine Type V8
Notes
  • Big Block Chevrolet Swap 396-502
  • Mid Length Design for Maximum Ground Clearance.
  • Will not fit with Factory Saginaw 800 power steering box.
  • Not recommended for Gen-6 502cid engines with aluminum heads.
  • Fits with manual and auto trans floor shifts only.
  • Big block frame stands and motor mounts required for proper fit.
  • Will fit OE Suspension & Detroit Speed & Engineering front subframes.

You may also like

RECENTLY VIEWED PRODUCTS