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Competition Headers 265-400 Chevy Small Block V8
Product Discontinued
HOOKER HEADERSPART NUMBER: 520-2453-3

Competition Headers 265-400 Chevy Small Block V8

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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

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$25800
Metallic Ceramic Coated Long Tube Headers 1973-1987 Small Block Chevy Truck/SUV [265-400 ci]

555-300110

Metallic Ceramic Coated Long Tube Headers 1973-1987 Small Block Chevy Truck/SUV [265-400 ci]

$40599

Chevy/GMC Truck & Van Chevy Small Block
    Competition Headers
  • 265-400 Chevy Small Block V8
  • 1969-91 Blazer, Suburban, Jimmy, Yukon 2DR 4WD
  • 1963-87 1/2, 3/4, & 1 Ton Truck 4WD
  • 1.625'' x 27'' Primary Tubes
  • 2.5'' x 8'' Collector
  • "Darksides" Black Ceramic Coated

    Footnotes:
  • Will not fit angle plug heads.
  • Applications with oxygen sensors use reducers 555-30010 for 2-1/2' three bolt flange.
  • Looking for a high performance finish to your Custom dual exhaust? Use Hooker dual pipe kits:
    For 69-72 Blazer, Jimmy, Yukon 4WD - 520-16527
    For 73-91 Blazer, Jimmy, Yukon 4WD - 520-16528
    For 73-87 1/2, 3/4 & 1 Ton Trucks 4WD - 520-16526

    Accessory Compatibility:
  • Power Steering - Yes
  • Power Brakes - Yes
  • Air Conditioning - Yes
  • Smog Pump - Requires Modifications
  • Alternator/Generator - Yes, engines with alternator/generator mounted on the cylinder head require additional brackets:
    Driver side mount will require 520-10927 and 520-10928
    Passgr side mount will require 520-10922 and 520-10928

    Transmission Compatibility:
  • Manual Column Shifter - Yes
  • Manual Floor Shifter - Yes
  • Automatic Column Shifter - Yes
  • Automatic Floor Shifter - No

    Included Items Note: Bolts and Gaskets Included, Reducers required

    Port Shape: SAP

    Emissions Compatibility: Not Street Legal Except Pre-1974
Part TypeHeader
BrandHOOKER HEADERS
Package Height9.0
Package Width18.0
Package Length39.0
Weight34.0 PG
Part CategoryPerformance Parts
Header FinishBlack ceramic coated
Tube DirectionDown Swept
QuantitySold as a pair
Bolts/Studs IncludedYes
Cylinder Head Port ShapeOval
Transmission Mount IncludedNo
Header MaterialSteel
Gaskets IncludedYes
Tube MaterialMild Steel
Weld-UpNo
Collector Attachment3-bolt flange
Flange StyleStandard
TunedNo
Collector Diameter2.5 in (63.5 mm)
Motor Mounts IncludedNo
Part FitmentSemi Universal
Reducers IncludedNo
ApplicationAutomotive
Primary Tube Gauge16-gauge
Header StyleFull-length
Cross Over Pipe IncludedNo
Catalytic Converter(S) IncludedNo
Primary Tube Diameter1.625 in (41.3 mm)
Vendor Part Number2453-3HKR
Package Qty1
Package TypeEA
No Questions
No Reviews
Please click here to download the instructions PDF file

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