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Doug's Headers 1962-67 Chevy II LS Engine Swap 1 3/4" Fenderwell Header with Metallic Ceramic Coating D366

Doug's Headers 1962-67 Chevy II LS Engine Swap 1 3/4" Fenderwell Header with Metallic Ceramic Coating D366
Doug's Headers 1962-67 Chevy II LS Engine Swap 1 3/4" Fenderwell Header with Metallic Ceramic Coating D366Doug's Headers 1962-67 Chevy II LS Engine Swap 1 3/4" Fenderwell Header with Metallic Ceramic Coating D366
$2,118.99 st
NEWARRIVING SOONEstimated Ship Date 08/25/2026 (If Ordered Today)
Model: 5124478
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
STORE PICKUP
[More Info]
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 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
About Doug's Headers

Doug's Headers are a fixture in the motorsports aftermarket, pioneering quality muscle car performance headers for decades. Unlike the competition, Doug's Headers prides ourselves on superior design detail resulting in a hassle-free installation for any application.

Downloads:

Download Name File Size
D366.pdf45.82KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Fitment Notes
Chevrolet Chevy II 1962 - 1967 For use with Chevrolet LS Engine Swap
Fenderwell
Metallic Ceramic Coated
Silver

Specifications:

Collector Attachment 3-Bolt Flange
Collector Diameter 3.0 IN
Collector Port Diameter 3.0 IN
Color Silver
Cylinder Head Port Shape SAP
Design Fenderwell
Finish Metallic Ceramic Coated
Flange Thickness 0.375 IN
Gasket Or Seal Included Yes
Gaskets Included Yes
Grade Type Performance
Header Material Steel
Header Style Fenderwell
Material Steel
Mounting Hardware Included Yes
Oxygen Sensor Port Yes
Part Type Exhaust Header
Port Shape SAP
Primary Tube Outside Diameter 1.75 IN
Proposition 65 www.P65Warnings.ca.gov
Sheen Level Semi-Gloss
Tube Wall Thickness 16 GU
Warranty Time 24 Months

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