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Doug's Headers 1964-66 MOPAR A-Body Small Block Alter-K-Tion Suspension 1 3/4" Long Tube Header with Metallic Ceramic Coating D454

Doug's Headers 1964-66 MOPAR A-Body Small Block Alter-K-Tion Suspension 1 3/4" Long Tube Header with Metallic Ceramic Coating D454
$1,392.99 st
NEWARRIVING SOONEstimated Ship Date 08/25/2026 (If Ordered Today)
Model: 5124500
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 1
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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.
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
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.

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 Engine Fitment Notes
Dodge Dart 1964 4.5L / 273 / V8 Fits With Reilly Motorsports Alter-K-Tion front suspension only.
Uses 3" V band collectors with clamps provided.
Requires Mini Style starter, PerTronix S3002P/B.
Full-length
Metallic Ceramic Coated
Except Power Brakes
with Floor Shifter
Silver
Dodge Dart 1965 4.5L / 273 / V8 Fits With Reilly Motorsports Alter-K-Tion front suspension only.
Uses 3" V band collectors with clamps provided.
Requires Mini Style starter, PerTronix S3002P/B.
Full-length
Metallic Ceramic Coated
Except Power Brakes
with Floor Shifter
Silver
Dodge Dart 1966 4.5L / 273 / V8 Fits With Reilly Motorsports Alter-K-Tion front suspension only.
Uses 3" V band collectors with clamps provided.
Requires Mini Style starter, PerTronix S3002P/B.
Full-length
Metallic Ceramic Coated
Except Power Brakes
with Floor Shifter
Silver
Plymouth Barracuda 1964 4.5L / 273 / V8 Fits With Reilly Motorsports Alter-K-Tion front suspension only.
Uses 3" V band collectors with clamps provided.
Requires Mini Style starter, PerTronix S3002P/B.
Full-length
Metallic Ceramic Coated
Except Power Brakes
with Floor Shifter
Silver
Plymouth Barracuda 1965 5.2L / 318 / V8
4.5L / 273 / V8		 Fits With Reilly Motorsports Alter-K-Tion front suspension only.
Uses 3" V band collectors with clamps provided.
Requires Mini Style starter, PerTronix S3002P/B.
Full-length
Metallic Ceramic Coated
Except Power Brakes
with Floor Shifter
Silver
Plymouth Barracuda 1966 5.2L / 318 / V8
4.5L / 273 / V8		 Fits With Reilly Motorsports Alter-K-Tion front suspension only.
Uses 3" V band collectors with clamps provided.
Requires Mini Style starter, PerTronix S3002P/B.
Full-length
Metallic Ceramic Coated
Except Power Brakes
with Floor Shifter
Silver
Plymouth Valiant 1964 4.5L / 273 / V8 Fits With Reilly Motorsports Alter-K-Tion front suspension only.
Uses 3" V band collectors with clamps provided.
Requires Mini Style starter, PerTronix S3002P/B.
Full-length
Metallic Ceramic Coated
Except Power Brakes
with Floor Shifter
Silver
Plymouth Valiant 1965 4.5L / 273 / V8 Fits With Reilly Motorsports Alter-K-Tion front suspension only.
Uses 3" V band collectors with clamps provided.
Requires Mini Style starter, PerTronix S3002P/B.
Full-length
Metallic Ceramic Coated
Except Power Brakes
with Floor Shifter
Silver
Plymouth Valiant 1966 4.5L / 273 / V8 Fits With Reilly Motorsports Alter-K-Tion front suspension only.
Uses 3" V band collectors with clamps provided.
Requires Mini Style starter, PerTronix S3002P/B.
Full-length
Metallic Ceramic Coated
Except Power Brakes
with Floor Shifter
Silver

Specifications:

Collector Attachment V-Band
Collector Diameter 3.0 IN
Collector Port Diameter 3.0 IN
Color Silver
Cylinder Head Port Shape SAP
Design Full-length
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 Full-length
Material Steel
Mounting Hardware Included Yes
Oxygen Sensor Port No
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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Doug's Headers 1964-66 MOPAR A-Body Small Block Alter-K-Tion Suspension 1 3/4" Long Tube Header with Metallic Ceramic Coating D454:
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