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Vehicle Info NeededHOOKER HEADERSPART NUMBER: 520-2451
2451 Competition Long-Tube Headers for 283-400 Small Block Chevy V8
$29595$328.95You Save$33.00
Ships on Sep 04, 2026
Lowest Price GuaranteeChevy/GM Car Chevy Small Block
- Competition Long Tube Headers
- 283-400 Small Block Chevy V8
- 1967-1974 Camaro
- 1965-1974 Chevy Full Size
- 1964-1974 Chevelle/El Camino
- 1970-1974 Monte Carlo
- 1968-1974 Nova
- 1.625'' Primary Tubes
- 3'' Collector
- Black Painted
Notes:
- Designed for stock heads with factory straight plugs (4-1/2" plug spacing).
- Will not fit angle plug heads.
- Complete exhaust systems can be fabricated using Hooker Mufflers.
- A/C Requires bracket 520-10925 drivers side or 520-10926 passenger side. 1979 and later with short compressor use stock brackets.
- Applications with oxygen sensors use 555-30012 for 3' three bolt flange.
- The #1 tube (front drivers) has a small dent for spark plug and spark plug wire clearance.
Accessory Compatibility: - Alternator/Generator - Yes, except short water pump engines with drivers side mount will require 520-10927 and 520-10928
- Power Steering - Yes
- Power Brakes - Yes
- Air Conditioning - Yes, may require brackets listed above
- Smog Pump - Requires modifications
Transmission Compatibility: - Manual Column Shifter - Yes if equipped
- Manual Floor Shifter - Yes if equipped
- Automatic Column Shifter - Yes if equipped
- Automatic Floor Shifter - Yes if equipped
Included Items Note: Bolts and Gaskets Included, Reducers required
Port Shape: SAPEmissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeHeader
BrandHOOKER HEADERS
Package Height10.0
Package Width18.0
Package Length39.0
Weight35.0 PG
Part CategoryPerformance Parts
Header FinishPainted
Tube DirectionDown Swept
Bolts/Studs IncludedYes
Cylinder Head Port ShapeOval
Transmission Mount IncludedNo
Gaskets IncludedYes
TunedNo
Motor Mounts IncludedNo
Primary Tube Gauge16-gauge
Header StyleFull-length
Cross Over Pipe IncludedNo
Primary Tube Length30 in (762 mm)
QuantitySold as a pair
Header MaterialSteel
Tube MaterialMild Steel
Weld-UpNo
Collector Attachment3-bolt flange
Flange StyleStandard
Collector Diameter3 in (76.2 mm)
Part FitmentSemi Universal
Reducers IncludedNo
ApplicationAutomotive
Catalytic Converter(S) IncludedNo
Primary Tube Diameter1.625 in (41.3 mm)
Vendor Part Number2451HKR
Package Qty1
Package TypeEA
No Questions
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