Hooker Headers Competition Headers 265-400 Chevy Small Block V8
520-2451
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| Ratings |
|---|
| Price |
| Brand |
Chevy/GM Car Chevy Small Block
Applications Continued:
1978-87 G-Body
1965-89 Full Size Car
Footnotes: 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: SAP
Emissions Compatibility: Not Street Legal Except Pre-1974
Footnotes:
Accessory Compatibility:
Transmission Compatibility:
Included Items Note: Bolts and Gaskets Included, Reducers required
Port Shape: SAP
Emissions Compatibility: Not Street Legal Except Pre-1974
Specifications:
Application
Automotive
Bolts/Studs Included
Yes
Catalytic Converter(s) Included
No
Collector Attachment
3-bolt flange
Cross Over Pipe Included
No
Cylinder Head Port Shape
Oval
Flange Style
Standard
Gaskets Included
Yes
Header Finish
Painted
Header Material
Steel
Header Style
Full-length
Motor Mounts Included
No
Primary Tube Diameter (in.)
1 5/8
Primary Tube Gauge
16-gauge
Primary Tube Length (in.)
30
Quantity
Sold as a pair
Reducers Included
No
Transmission Mount Included
No
Tube Direction
Down Swept
Tube Material
304 Stainless Steel
Tube Material
Mild Steel
Tuned
No
Weld-Up
No
Collector Diameter
3 in (76.2 mm)
Manufacturer's Part Number:
2451HKR
Shipping Weight:
35
Package Height:
39
Package Depth:
18
Package Width:
10
All Budget Headers are NOT Created Equal!
Hooker's Competition Series Headers come in your choice of finishes and are engineered to perform at a reasonable price! To let your engine really breathe, Hooker utilized 16 gauge (.049'' thick) steel tubing attached to long transition style collectors. Giving you a serious increase in flow over other brand headers without a loss in the backpressure most engines need to perform! After years of testing, Hooker has discovered that a machined 5/16'' header flange offers enough flex to hold the gasket tight to each exhaust port plus enough rigidity to keep everything properly tied together.
Black Painted (Part numbers do not have a suffix)
Metallic Ceramic Coating (Part numbers have a -1 suffix)
Stainless Steel (Part numbers have a -2 suffix)
"Darksides" Black Ceramic Coating (Part numbers have a -3 suffix)
Titanium Ceramic Coating (Part numbers have a -4 suffix)
Does Hooker Headers 2451 fit your vehicle?
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1974 CHEVROLET CAPRICE
- Liter: 6.6
- SubModel: ESTATE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty~Will Not Fit Rack Conversions~Will Not Fit With Angle Plug Or Raised Port Heads~Will Not Fit With Close Ratio Steering Boxes
- CUI: 400
- Engine Type: V8 ( 6.6L / 400 )
- Engine Vin: U
1978 CHEVROLET CAMARO
- Liter: 5.7
- SubModel: LT
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty~Will Not Fit Rack Conversions~Will Not Fit With Angle Plug Or Raised Port Heads~Will Not Fit With Close Ratio Steering Boxes
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
1971 CHEVROLET EL CAMINO
- Liter: 6.6
- SubModel: SS
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty~Will Not Fit Rack Conversions~Will Not Fit With Angle Plug Or Raised Port Heads~Will Not Fit With Close Ratio Steering Boxes
- CUI: 400
- Engine Type: V8 ( 6.6L / 400 )
- Engine Vin: -
1987 GMC CABALLERO
- Liter: 5
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty~Reducers Available With Oxygen Sensor~Will Not Fit Rack Conversions~Will Not Fit With Angle Plug Or Raised Port Heads~Will Not Fit With Close Ratio Steering Boxes
- CUI: 305
- Engine Type: V8 ( 5L / 305 )
- Engine Vin: H
1989 CHEVROLET CAPRICE
- Liter: 5
- SubModel: CLASSIC
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty~Reducers Available With Oxygen Sensor~Will Not Fit Rack Conversions~Will Not Fit With Angle Plug Or Raised Port Heads~Will Not Fit With Close Ratio Steering Boxes
- CUI: 305
- Engine Type: V8 ( 5L / 305 )
- Engine Vin: E
1978 CHEVROLET CAPRICE
- Liter: 5
- SubModel: CLASSIC ESTATE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty~Will Not Fit Rack Conversions~Will Not Fit With Angle Plug Or Raised Port Heads~Will Not Fit With Close Ratio Steering Boxes
- CUI: 305
- Engine Type: V8 ( 5L / 305 )
- Engine Vin: U
1972 CHEVROLET CHEVELLE
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
1970 CHEVROLET CHEVELLE
- Liter: 5
- SubModel: CONCOURS
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
- CUI: 307
- Engine Type: V8 ( 5L / 307 )
- Engine Vin: -
1976 CHEVROLET CAPRICE
- Liter: 5.7
- SubModel: CLASSIC SPORT
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty~Will Not Fit Rack Conversions~Will Not Fit With Angle Plug Or Raised Port Heads~Will Not Fit With Close Ratio Steering Boxes
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: V
1969 CHEVROLET BISCAYNE
- Liter: 6.5
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
- CUI: 396
- Engine Type: V8 ( 6.5L / 396 )
- Engine Vin: -
1981 GMC CABALLERO
- Liter: 5
- SubModel: DIABLO
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty~Reducers Available With Oxygen Sensor~Will Not Fit Rack Conversions~Will Not Fit With Angle Plug Or Raised Port Heads~Will Not Fit With Close Ratio Steering Boxes
- CUI: 305
- Engine Type: V8 ( 5L / 305 )
- Engine Vin: H
1972 CHEVROLET MONTE CARLO
- Liter: 6.6
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Black Finish; Tube Size 1.625 in. x 30 in.; Collector Size 2.5 in./Length 8 in.; Port Shape Same As Port;Intended For Race Use Only; Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty~Will Not Fit Rack Conversions~Will Not Fit With Angle Plug Or Raised Port Heads~Will Not Fit With Close Ratio Steering Boxes
- CUI: 400
- Engine Type: V8 ( 6.6L / 400 )
- Engine Vin: R
2451 - Hooker Headers Competition Headers Chevy/GM Car is rated
out of
5 by
15.
Rated 5 out of
5
by
Ken87 from
Purchased them for 81 regal bulid sbc 383 stroker fit like a glove could sneak them in while motor was already in no scratches or dents and descent clearance on plugs and wires worth every dollar
Date published: 2019-07-17
Rated 5 out of
5
by
Novaman69 from
Perfect Fit
Put these on a 1969 Chevy Nova 4-door with a powerglide transmission works with column shifter perfectly other headers either went right into the linkage or made it impossible to switch into Drive.
Date published: 2019-06-11
Rated 5 out of
5
by
TruckAz from
Great product overall
Great description
Well built
Easy installation
Includes all Hardware
Can't beat the price and quality I've Checked!
Date published: 2019-01-10
Rated 5 out of
5
by
Austinkstevens from
Fit perfect
I have installed theses and I can’t get my dipstick tube to slide back in has any one else’s had this problem? 92 Chevy z71 350/5.7L
Date published: 2018-05-07
Rated 5 out of
5
by
Judy and Keith from
Thank you Jegs!!
I bought these for my husband and he was thrilled! You can't go wrong with Jeg's! Always the best customer service and they back up everything they sell. Love you guys!!
Date published: 2017-04-10
Rated 5 out of
5
by
John Zamora jr from
These headers look and sound great in my 65 impala!!im very satisfied
Date published: 2016-10-21
Rated 5 out of
5
by
Jcat from
I bought these's headers about a month ago and i love how they fit, i always buy from Jegs
Date published: 2016-06-05
Rated 5 out of
5
by
Cowboysteve from
Perfect fitment,fast shipping, great price,defiantly be back for more
Date published: 2016-03-30
Will these fit a 2000 Chevy Silverado LS 5.3.
No, these will not fit your Chevy truck.
Date published: 2018-04-24
Will these work on my 00 Chevy Silverado v8 5.3 ?
No, these headers will not fit your application.
Date published: 2018-04-13
Will these work with Vortec heads
Yes, these will work with most Vortec cylinder heads.
Date published: 2018-04-11
Will this fit a 1982 camaro Z28 Indy 500 pace car, if not what one will, and can I get the high temp coating on this
This header 2451 will not fit 82 Camaro, you could use Hooker # 2210
Date published: 2018-04-05
Would they fit a 84 Chevy Silverado square body 350 small block?
No, unfortunately passenger car only
Date published: 2018-03-24
Will they fit in Oldsmobile 350 rocket
This is not compatible with the Oldsmobile engine.
Date published: 2018-03-12
Would this fit a 2007 Chevrolet Silverado 5.3 ?
No, you will need to use a kit for the GM LS series engines.
Date published: 2018-03-01
will they fit a 1979 chevy g 10 van with the 350 ?
No you would want Hooker Headers #2459.
Date published: 2018-02-12
Some parts are not legal for use in California or other states with similar laws / regulations
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
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Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.