Just Arrived! Shop MBRP Exhaust

Just Arrived Rough Country!

Doug's Headers  |  SKU: D368-B-BKLK

Long Tube Headers for 67-69 F Body/68-74 X Body 265-400 SBC D368-B

Regular price $750.10 USD
Shipping calculated at checkout.

The "verify fitment tool" above is for Year, Make, and Model ONLY!

Please see description for full fitment notes!!!

Fitment

Warranty Information

Customer service is our top priority and because we value your time and energy we ask you to visit our Contact Us page and reach out so that we may assist you in finding the correct warranty for your product. Please include your name, the name on the order, the order number, and the SKU of the product to ensure the quickest and most accurate response to your inquiry.

Description

Overview:

67-69 F Body/68-74 X Body SBC Long Tube Black Ctd

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.

Features:

  • 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

Specs:

  • Brand: Doug's Headers
  • Collector Attachment: 3-Bolt Flange
  • Collector Diameter: 3.0 IN
  • Collector Port Diameter: 3.0 IN
  • Color: Black
  • Cylinder Head Port Shape: SAP
  • Design: Full-length
  • EGT Port: No
  • Finish: Hi-Temp Black Coating
  • Flange Thickness: 0.375 IN
  • Gasket Or Seal Included: Yes
  • Gaskets Included: Yes
  • Grade Type: Performance
  • Header Material: Steel
  • Header Style: Full-length
  • Material: Steel
  • Mounting Hardware Included: Yes
  • Oxygen Sensor Port: No
  • Port Shape: SAP
  • Primary Tube Outside Diameter: 1.75 IN
  • Primary Tubing Diameter: 1.75 IN
  • Prop 65 (C, R or CR): CR
  • Prop 65 Yes/No: Yes
  • Sheen Level: Matte
  • Title: Doug's Long Tube Header 67-69 F Body/68-74 X Body 265-400 SBC 1 3/4" Primary 3" Collector Black Hi Temp Coated D368-B
  • Tube Wall Thickness: 16 GU
  • Part Number: D368-B

Applications:

  • 1968-1968 Chevrolet Chevy II 307 CID
  • 1968-1968 Chevrolet Chevy II 327 CID
  • 1968-1968 Chevrolet Chevy II 350 CID
  • 1967-1969 Chevrolet Camaro 327 CID
  • 1967-1969 Chevrolet Camaro 302 CID
  • 1967-1969 Chevrolet Camaro 350 CID
  • 1969-1969 Chevrolet Camaro 307 CID
  • 1969-1974 Chevrolet Nova 350 CID
  • 1969-1973 Chevrolet Nova 307 CID

Emissions:

  • This Product is LEGAL for Closed Course Competition use or Pre-Emissions Controlled Vehicles ONLY. It is Not Legal for use on any Emissions Controlled Vehicle for Street or Off Highway use.

Instructions:

Fitment Notes:

  • Fits most angle plug heads.
  • Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 and ZZ6 engines.
  • Requires removal or modification of locking steering columns if equipped.
  • with Floor Shifter
  • Fits 67-69 Firebird with 265-400 Small Block Chevrolet Swap and above fitment notes

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.