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Doug's Headers D3336 Headers, Long Tube, Steel, Silver Ceramic, 1.75 in. Primary Tube, 3 in. Collector, Chevy, LS Swap, Pair

SKU: DOUD3336

Headers

Doug's Headers D3336 Headers, Long Tube, Steel, Silver Ceramic, 1.75 in. Primary Tube, 3 in. Collector, Chevy, LS Swap, Pair

SKU: DOUD3336

Headers
A$2,674.33
LAST ONE! Est Ship 4-7 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Doug's Headers has long been recognized of as one of the premiere exhaust header manufacturers in the performance industry. Since1958, they have been producing high-quality, hand-built, mandrel-bent exhaust headers. Each and every header is tuned with the proper tube size and length to efficiently remove all of the exhaust from each cylinder, reducing pumping losses, and resulting in dramatic increases in horsepower and torque. Doug's headers are carefully developed on the vehicles that they are intended to fit and are re-checked numerous times during the design and manufacturing process. Their designs include mid-length headers, Tri-Y headers, and long tube headers, plus manifold replacement headers.

Their headers come with all the necessary mounting hardware, collector reducers or connector pipes, premium extra-thick gaskets, and detailed installation instruction sheets. The gaskets are rated up to 1100 degrees F, pressures to 3700 psig (255 bar), and are designed for an exact port match with their headers.

Doug's Headers offer a choice of finishes:

* Metallic Ceramic Thermal Barrier Coating (MCTBC), which is polished with a vibratory finishing process that not only produces a high-luster aluminum appearance, but also compresses and activates the coating, which increases the surface hardness. The finish is 60 percent more corrosion resistant than an unpolished surface, easy to maintain, and will last for years under normal operation conditions. MCTBC also protects and extends the life of headers by creating a thermal barrier that significantly lowers under hood temperatures and protects the substrate metal from thermal fatigue.
* Hi-Temp black coating is an affordably priced alternative to their MCTBC. This finish provides good corrosion and heat protection when compared to many of the "cheaper" header finishes being applied by our competitors.
* Raw steel is available for individual customizing

Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment.

Part Type

Coated Header - GM LS Engines 64-72 Chevelle

Data: v4.2 - Upd: 2026-09-28 14:30:04

Specifications

Product Attributes - Brand
Doug's Headers
Product Attributes - Manufacturer's Part Number
D3336
Product Attributes - Part Type
Headers
Product Attributes - Product Line
Doug's Headers
Product Attributes - UPC
694342538866
Product Attributes - Header Style
Long tube one-piece
Product Attributes - Header Material
Steel
Product Attributes - Primary Tube Outside Diameter (in.)
1 3/4 in.
Product Attributes - Header Color
Silver ceramic coated
Product Attributes - Flange Style
Standard
Product Attributes - Weld-Up
No
Product Attributes - Cylinder Head Port Shape
Round
Product Attributes - Collector Attachment
V-band
Product Attributes - Collector Diameter (in.)
3.00
Product Attributes - Collector Reducers Included
Yes
Product Attributes - Collector Reducer Exit Diameter
3.000 in.
Product Attributes - Tuned
No
Product Attributes - Primary Tube Gauge
16-gauge
Product Attributes - Flange Thickness (in.)
0.38 in.
Product Attributes - Bolts/Studs Included
Yes
Product Attributes - Gaskets Included
Yes
Product Attributes - Crossover Pipe Included
No
Product Attributes - Catalytic Converter(s) Included
No
Product Attributes - Motor Mounts Included
No
Product Attributes - Transmission Mount Included
No
Product Attributes - Quantity
Sold as a pair.

Reference Information

Brand Name/s Doug's Headers
StreetFX SKU douD3336
SFX Item ID 5519536
Supplier Item Code 5519536
Manufacturer SKU D3336
Manufacturer UPC 694342538866
Alternative References DGHD3336

Compatibility

Application Data
  • MakeBUICK
    ModelGRAN SPORT
    Beginning Year1965
    Ending Year1967
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes160 - Includes oxygen sensor extension harness. 180 - Requires LS1 adapter plate kit DOU-SK100.
  • MakeBUICK
    ModelGRAN SPORT
    Beginning Year1965
    Ending Year1967
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes160 - Includes oxygen sensor extension harness. 180 - Requires LS1 adapter plate kit DOU-SK100.
  • MakeBUICK
    ModelGRAN SPORT
    Beginning Year1965
    Ending Year1967
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes160 - Includes oxygen sensor extension harness. 180 - Requires LS1 adapter plate kit DOU-SK100.
  • MakeBUICK
    ModelSKYLARK
    Beginning Year1964
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes160 - Includes oxygen sensor extension harness. 180 - Requires LS1 adapter plate kit DOU-SK100.
  • MakeBUICK
    ModelSKYLARK
    Beginning Year1964
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes160 - Includes oxygen sensor extension harness. 180 - Requires LS1 adapter plate kit DOU-SK100.
  • MakeBUICK
    ModelSKYLARK
    Beginning Year1964
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes160 - Includes oxygen sensor extension harness. 180 - Requires LS1 adapter plate kit DOU-SK100.
  • MakeCHEVROLET
    ModelCHEVELLE
    Beginning Year1964
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes160 - Includes oxygen sensor extension harness. 180 - Requires LS1 adapter plate kit DOU-SK100. 212 - Will not fit manual transmission cars with factory Z bar clutch linkage.
  • MakeCHEVROLET
    ModelCHEVELLE
    Beginning Year1964
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes160 - Includes oxygen sensor extension harness. 180 - Requires LS1 adapter plate kit DOU-SK100. 212 - Will not fit manual transmission cars with factory Z bar clutch linkage.
  • MakeCHEVROLET
    ModelCHEVELLE
    Beginning Year1964
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes160 - Includes oxygen sensor extension harness. 180 - Requires LS1 adapter plate kit DOU-SK100. 212 - Will not fit manual transmission cars with factory Z bar clutch linkage.
  • MakeCHEVROLET
    ModelEL CAMINO
    Beginning Year1964
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes180 - Requires LS1 adapter plate kit DOU-SK100. 181 - Includes 3 in. to 2.5 in. reducers with oxygen sensor fittings. 212 - Will not fit manual transmission cars with factory Z bar clutch linkage.
  • MakeCHEVROLET
    ModelEL CAMINO
    Beginning Year1964
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes180 - Requires LS1 adapter plate kit DOU-SK100. 181 - Includes 3 in. to 2.5 in. reducers with oxygen sensor fittings. 212 - Will not fit manual transmission cars with factory Z bar clutch linkage.
  • MakeCHEVROLET
    ModelEL CAMINO
    Beginning Year1964
    Ending Year1972
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    DrivetrainRWD
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes180 - Requires LS1 adapter plate kit DOU-SK100. 181 - Includes 3 in. to 2.5 in. reducers with oxygen sensor fittings. 212 - Will not fit manual transmission cars with factory Z bar clutch linkage.

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