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Doug's Headers

Headers, LS Swap, Doug's, 1964-67 Chevelle, 3", 1-7/8", Long Tube

Vehicle Specific View fitment
Part# CH35778
Mfg# D3349
Sold As Pair
Manufacture Rebate
$671.99
List Price: $739.95
You Save $67.96

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Color Variation

Due to variations in monitor settings, some colors on this page may appear slightly different from GM originals. In addition, due to color differences in the original GM dye lots, interior product colors may vary slightly.

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Designed For LS Engine Swaps

Polished or ceramic coated

Doug's Headers LS-swap headers are designed to ensure a proper fit in 1964-72 Chevelles with 4.2L to 6.2L LS-Swap applications. Ceramic coated in either black or silver for strong corrosion resistance and heat retention, these are intended to be used with their LS-Swap mounts and offers a bolt on 3" exhaust system for this header application. These can be used with most GM automatic transmissions as well as T56 and T56 Magnum stick shift. The headers are mandrel bent with 1 7/8" primary and 3" collectors, which includes bungs for O2 sensors, and is also constructed with 3/8" flanges and V-band clamp for a leak proof seal. Angle boot spark plug wires are required with these headers. Doug's LS Engine Swap products are sold separately so you can buy products as your build requires with the flexibility to build your project your way.

Notes

  • Cannot guaranty fit with any other brands.
  • Will not work with factory column shifters.
  • If using a column shift automatic you will need to fabricate linkage or use a cable conversion kit.
  • If using a manual trans we recommend a floor shifter and hydraulic clutch conversion.
  • Minor trimming may be required for the 4L80/4L85 transmission.
  • This item is not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: This item exceeds standard size and is exempt from free shipping.
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This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only. Learn More

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  • 2024 Chevelle, El Camino 64-77 394
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Rebate

Mail-In Rebate
$100 off qualifying Dougs Headers - 2024 Fall Rebate$

Expires: 12/31/2024

• $100 on select Headers

Valid on purchases October 1st - December 31st, 2024
* Rebate Form must be submited by January 30th, 2025

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Vehicle Fitment

Year Make Model Application Details
1964–1967 Chevrolet Chevelle long-tube, 1-7/8" primary, 3" collector
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