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Chevy/GMC Truck & Van Chevy Small Block
- Competition Headers
- 265-400 Chevy Small Block V8
- 1969-91 Blazer, Suburban, Jimmy, Yukon 2WD
- 1963-87 1/2, 3/4, & 1 Ton Truck 2WD
- 1.625'' x 27'' Primary Tubes
- 2.5'' x 8'' Collector
- Titanium Ceramic Coated
Footnotes: - Applications with oxygen sensors use reducers 555-30010 for 2.5' three bolt flange.
- Will not fit angle plug heads.
- Looking for a high performance finish for your custom dual exhaust? Use Hooker dual pipe kit 520-16523.
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 Height10.0
Package Width19.0
Package Length45.5
Weight41.3 PG
Part CategoryPerformance Parts
Header FinishTitanium ceramic coated
Tube DirectionDown Swept
QuantitySold as a pair
Bolts/Studs IncludedYes
Cylinder Head Port ShapeOval
Transmission Mount IncludedNo
Header MaterialSteel
Gaskets IncludedYes
Tube Material304 Stainless 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 Number2452-4HKR
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
