Doug's Headers - D3336-SS

Doug's Headers D3336-SS 304 Stainless Long Tube Header 64-72 GM A Body 4.8-6.2L LS Engine Swap 1 3/4" Primary 3" Collector

Doug's Headers D3336-SS 304 Stainless Long Tube Header 64-72 GM A Body 4.8-6.2L LS Engine Swap 1 3/4" Primary 3" Collector

Part Number: D3336-SS / UPC 694342557119
Skip to product information

Features & Benefits

  • Natural stainless-steel finish offers superior resistance to rust and corrosion
  • 3/8" thick 304 stainless machine flanges to prevent warping
  • CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
  • Precision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower

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. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.


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 304 Stainless Steel
Material 304 Stainless Steel
Design Full-length
Primary Tubing Diameter 1.75 IN
Collector Port Diameter 3.0 IN
Port Shape Round
Tube Wall Thickness 16 Gauge
Flange Thickness 0.375 IN
Collector Attachment V-Band
EGT Port No
Oxygen Sensor Port Yes
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Color Silver
Sheen Level Satin

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 - D3336-SS

Doug's Headers D3336-SS 304 Stainless Long Tube Header 64-72 GM A Body 4.8-6.2L LS Engine Swap 1 3/4" Primary 3" Collector

Doug's Headers D3336-SS 304 Stainless Long Tube Header 64-72 GM A Body 4.8-6.2L LS Engine Swap 1 3/4" Primary 3" Collector

Part Number: D3336-SS / UPC 694342557119
Regular price $979.95
Sale price $979.95 Regular price

Part Number: D3336-SS / UPC 694342557119
Does This part fit My vehicle?
View All Vehicle Applications
Notify me when this item is back in stock
Input your email address and we'll let you know when it's back Please enter a valid email address to be notified. Success! We will notify you when this product is back in stock!.

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

  • Natural stainless-steel finish offers superior resistance to rust and corrosion
  • 3/8" thick 304 stainless machine flanges to prevent warping
  • CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
  • Precision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower

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. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.


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 304 Stainless Steel
Material 304 Stainless Steel
Design Full-length
Primary Tubing Diameter 1.75 IN
Collector Port Diameter 3.0 IN
Port Shape Round
Tube Wall Thickness 16 Gauge
Flange Thickness 0.375 IN
Collector Attachment V-Band
EGT Port No
Oxygen Sensor Port Yes
Gasket Or Seal Included Yes
Mounting Hardware Included Yes
Color Silver
Sheen Level Satin

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 Buick GS
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

Year / Make / Model 1964-1972 Buick Skylark
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

Year / Make / Model 1964-1972 Buick Sportwagon
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

Year / Make / Model 1964-1972 Chevrolet Chevelle
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

Year / Make / Model 1964-1972 Chevrolet El Camino
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

Year / Make / Model 1964-1967 Chevrolet Malibu
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

Year / Make / Model 1971-1972 GMC Sprint
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

Year / Make / Model 1964-1972 Pontiac GTO
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

Year / Make / Model 1964-1972 Pontiac LeMans
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

Year / Make / Model 1964-1970 Pontiac Tempest
Notes
  • GM LS Engine Swap
  • Includes O2 sensor extension harness.
  • Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.
  • Will not fit manual transmission cars with factory Z bar clutch linkage.

You may also like

RECENTLY VIEWED PRODUCTS