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1966-1974 Chevy GMC Flowtech Long Tube Headers Pianted, Tube Size 1.5, Collector Size 3

Item EK-61-880447-1
42 Reviews of Flowtech
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$242.95

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      Product Information

      Features, Description, Q&A

      Features

      • Legal For Sale Or Use On Racing Use Only Vehicles
      • Engineered With Mandrel Bent Tubing
      • Features Formed Collectors And 5/16 Inch Flanges With Sealing Rings
      • Includes All Mounting Hardware And Gaskets For Installation
      • Coated In High Heat Resistant Black Paint For Appearance
      • Constructed Of .049 Cold Roll Flash Mild Steel Tubing
      • Designed For Fit, Performance, And Economy
      • Compatible With Factory Power Steering And Power Brakes
      • Provides Improved Exhaust Flow To Support Engine Performance
      • Mandrel-Formed Power Plenum
      • Leakproof O-Ringed Port Seals
      • Adds A Stealthy Appearance With Satin Sheen Finish
      • Collector Diameter Is 3 Inches With 3-Bolt Flange Attachment
      • Primary Tubing Diameter Is 1.5 Inches
      • Includes Collector Reducer With 2.5 Inches Outlet Diameter
      • Sold As A Pair
      • Does Not Fit Angle Plug Heads
      • Fitment Is For Specific Chevy/GMC Truck And SUV Models From 1966 To 1974 With 283-400 Small Block Engines

      Description

      Performance Enhancement. The Flowtech HDR 66-74 CHVY/GMC TRK 2WD/4WD is designed to improve exhaust flow and support engine performance for Chevrolet and GMC trucks and SUVs. It is intended to optimize the engine’s breathing by replacing restrictive factory manifolds with long tube headers engineered for racing and high-performance applications.

      Construction and Appearance. Crafted from .049 thickness mild steel tubing, this header features mandrel bent tubes and formed collectors for precise fitment and maximum flow. The header is finished with a durable, high heat resistant black paint that provides a sleek, satin sheen appearance.

      Installation. Installation includes all necessary mounting hardware and gaskets. Some clutch linkage modification may be necessary, and a specific air conditioning bracket is required for certain applications.

      Application. This header fits 1966-1974 Chevrolet and GMC 1/2, 3/4, and 1-ton 2WD and 4WD trucks, as well as 1967-1974 Blazer/Jimmy 2WD and both 2WD and 4WD Blazer/Jimmy K5/Suburban models from 1966-1974. It is compatible with small block Chevy engines ranging from 283 to 400 cubic inches and does not fit vehicles equipped with angle plug heads.

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.3

      Reviews of Flowtech Classic Exhaust Products (42)

      Questions & Answers

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