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Hooker Headers 8501HKR LS Cast Iron Exhaust Manifolds

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#9308501

Hooker Headers 8501HKR LS Cast Iron Exhaust Manifolds

Name: Hooker Headers 8501HKR LS Cast Iron Exhaust Manifolds
Brand: Hooker Headers
SKU: 9308501
Price: 510.95 USD
Availability: InStock
Rating: 4.9 (15 reviews)

15 Reviews

6 Questions

Recommended for strong performance on engines making up to 500 horsepower
They are intended for all GM LS (except LS7 and LS9) engine swap applications
Engineered to be free-flowing for good performance and catalytic converter efficiency

$510.95

/pair

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$553.95

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Product Summary

Universal Fit, Iron, Natural, Round Port Flange Style

Recommended for strong performance on engines making up to 500 horsepower
They are intended for all GM LS (except LS7 and LS9) engine swap applications
Engineered to be free-flowing for good performance and catalytic converter efficiency
They are cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
A tight tuck design provides an universal fit for most popular chassis and a clean traditional muscle car appearance

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Key Specs

MFG. Part #	8501HKR
Brand	Hooker Headers
Finish	Natural

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Need To Know

Need help?

855.313.9176

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Return Policy

Installation Details

Exhaust Manifolds Installation Instructions (9308501)

Installation Tips

Installation Notes:

Not compatible with starters that have a solenoid clocking other than vertical, such as on GTO applications. Although designed as a stock replacement, this product does not have a C.A.R.B. Executive Order Exemption and therefore may or may not be legal for any particular pollution controlled application. Check with your state or local governmental authority regarding approval for your application. Have been validated thus far for fitment on 1970-81 GM F-bodies, 82-88 GM G-bodies and 68-72 GM A-bodies.

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Hooker Headers 8501HKR Details

As featured on Classic Truck’s Week to Wicked. Watch the transformation here!

Hooker cast iron exhaust manifolds have been designed to hug close to the engine block so they fit into a wide variety of replacement and engine–swap applications. Their contoured design aims the exhaust directly at the exit port for improved flow. Being cast iron means they will provide years of leak–free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance. “Hook” up your GM LS engine with Hooker cast iron Manifolds today!

Intended for all GM LS (except LS7 and LS9) engine swap applications where durability, quiet operation, emissions compliance and leak-free sealing is desired.
Recommended for strong performance on engines making up to 500 horsepower (For optimum high rpm performance see Hooker long tube engine swap headers)
Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance - ideal for GM E-Rod installations.
Free-flowing for good performance and catalytic converter efficiency.
Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance.
2 bolt exit flange configuration matches 2010 Camaro (also the same as the E-rod exhaust manifolds) which can be used with OE gaskets and fasteners if desired, for an OE quality seal.
2.25-inch outlet diameter
304 stainless steel mating flanges included (mating flange fasteners are not included)

Charts

Mounted Manifold Specs (GIF)

Hooker LS Manifold Instruction and Installation Guide (PDF)

Guides & Documents

Exhaust Manifolds Installation Instructions (9308501)

CARB Warning

Follow EPA, CARB, and state regulations for engine changes

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine

CARB warning

Hooker Headers 8501HKR Specifications

KEY SPECS
MFG. Part #	8501HKR
Brand	Hooker Headers
Finish	Natural

GENERAL
Material Type	Iron
Flange Style	Round Port
Gasket(s) Included	No
Drivers Side Dimension A	4.55"
Drivers Side Dimension B	9.63"
Drivers Side Dimension C	18.88"
Passenger Side Dimension A	4.60"
Passenger Side Dimension B	8.50"
Passenger Side Dimension C	18.75"
Hardware Included	No
Sold in Quantity	Pair
Notes	304 stainless steel mating flanges included.
GTIN Code	090127681244

Ratings & Reviews

4.9

15 Reviews

Overall Assessment

Customers appreciate the high quality, tight fit of the headers, appreciating their utility in different models like the 1947 Studebaker, 1978 Silverado, and 50 Chevy truck, where there was limited space for LS swaps. They have commended on the product's convenience, functionality, and aesthetic appeal, with a clean look and sturdy casting. The headers provided the necessary clearance, and some customers used them for custom builds, ensuring they could withstand demanding conditions. Customers have wished for the addition of studs with the headers. The headers were compared favorably to OEM and stock exhaust manifolds, and have been seen as a great option for hot rod truck projects.

Write A Review

4.9

15 reviews

Filter by Ratings

Sort Reviews

Speedway is the best

5.0

6 months ago

Steve

Glendora, CA

Verified

I bought the Hooker exhaust manifold for my LS swap build. They're going to work out great.

Would Recommend

Nice high quality headers with tight fit

5.0

4 years ago

Rickster

Cave Creek, AZ

Verified

The headers fit between the frame rails where the OEM exhaust manifold would not

Would Recommend

Would buy again

5.0

4 years ago

Sandman

Verified

I have 1947 studebaker m5 sitting on 1978 Silverado 1/2. Took out the 433 bbc replaced with 2003 5.3,Stock exhaust manifold fit the frame.these Hookers fit the bill! Got the clearance I needed.Basically I'll have one bend to the stacks.Been nice if studs where with it but I had new ones.

Would Recommend

Yes

5.0

4 years ago

Bens

Alabama

Verified

It was just what I needed for a tight fit.

Would buy for sure.

5.0

5 years ago

Matt

South Bend In.

Verified

53 chevy truck with LS376/480 installed.

Would Recommend

Msnifolds

5.0

5 years ago

Steve

Hudson falls ny

Verified

Woked grate, good quality

Would Recommend

Yes

4.0

5 years ago

Ben

South Gate

Verified

I'm doing a la swap on a 50 Chevy truck and I think I bought the right exhaust for it.

Would Recommend

I love working with Speedway. !! The best!!

5.0

6 years ago

Willey the whiz

Ceresco MI

Verified

Great product. Thought they might come with studs

Would Recommend

Perfect fit on my 79 Malibu

5.0

7 years ago

Spinnerbait

Tennessee

Verified

Nice clean look , casting was good , fit excellent

Would Recommend

Hooker manifolds

5.0

8 years ago

Clemons

Ringgold ga

Verified

Bought these to fit my 5.3 inbetween the frame rails they work great !

Would Recommend

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Showing 10 of 15 reviews

Questions & Answers

6 Questions • 8 Answers

Sort Questions

Will these fit a 1965 buick skylark with a 5.3L swap?

by Chivo

• 7 years ago

1 answer

View Answer

Will this fit my SBC 327

by Nish

• 8 years ago

2 answers

View Answers

Are these coated?

by DO

• 9 years ago

1 answer

View Answer

Will these work in a cj7 with a 5.3.

by ed

• 10 years ago

1 answer

View Answer

I have bought these manifolds and cannot find a flange gasket looked every where it is unreal that they didn't come with them. hooker header 850hkr ls

by Billy

• 10 years ago

2 answers

View Answers

i have gto ls1 can i change the starter so i can use the hooker header 850 1hkr

by 38chevy

• 12 years ago

1 answer

View Answer

6 of 6 questions shown

Fitment

2004 Buick Rainier

GM LM4

2004-2005 Cadillac CTS

GM LS6

2006-2007 Cadillac CTS

GM LS2

2009-2014 Cadillac CTS

GM LSA

2002-2011 Cadillac Escalade

GM LM7
GM LQ9

2012 Cadillac Escalade

6.2 Chevy LS V8

2003-2006 Cadillac Escalade ESV

GM LM7
GM LQ9

2007-2012 Cadillac Escalade ESV

6.2 Chevy LS V8

2002-2006 Cadillac Escalade EXT

GM LM7
GM LQ9

2007-2012 Cadillac Escalade EXT

6.2 Chevy LS V8

2007-2011 Chevy Avalanche

GM L76
GM LC9
GM LMG
GM LY5

2012-2013 Chevy Avalanche

GM LY5

2002-2006 Chevy Avalanche 1500

GM LM7

2000-2002 Chevy C1500

4.8 Chevy LS V8
GM LM7
GM LQ4

1998-2002 Chevy Camaro

GM LS1

2010-2014 Chevy Camaro

GM LS3

1997-2000 Chevy Corvette

GM LS1

2001-2004 Chevy Corvette

GM LS1
GM LS6

2005-2007 Chevy Corvette

GM LS2

2008-2013 Chevy Corvette

GM LS3

1999 Chevy Silverado 1500

4.8 Chevy LS V8
GM LM7

2000-2011 Chevy Silverado 1500

4.8 Chevy LS V8
GM L20
GM LM7
GM LY2

2012-2014 Chevy Silverado 1500

4.8 Chevy LS V8
GM LM7

2007 Chevy Silverado 1500 Classic

GM LQ4

2001-2003 Chevy Silverado 1500 HD

GM LQ4

2005-2006 Chevy Silverado 1500 HD

GM LQ4

2007 Chevy Silverado 1500 HD

GM LQ9

2007 Chevy Silverado 1500 HD Classic

GM LQ4

2000-2004 Chevy Silverado 2500

GM LM7
GM LQ4

2005 Chevy Silverado 2500

GM LQ9

2001-2011 Chevy Silverado 2500 HD

GM LQ4

2007 Chevy Silverado 2500 HD Classic

GM LQ4

2001-2006 Chevy Silverado 3500

GM LQ4

2007 Chevy Silverado 3500 Classic

GM LQ4

2007-2011 Chevy Silverado 3500 HD

GM LQ4

2014-2017 Chevy SS

GM LS3

2003-2004 Chevy SSR

GM LM4

2014 Chevy Suburban

GM LMG
GM LY5

2000-2001 Chevy Suburban 1500

GM LM7

2002-2006 Chevy Suburban 1500

GM L59
GM LM7

2007-2009 Chevy Suburban 1500

GM LC9
GM LMG
GM LY5

2010-2011 Chevy Suburban 1500

GM LC9
GM LMG

2012-2014 Chevy Suburban 1500

GM LMG
GM LY5

2000-2006 Chevy Suburban 2500

GM LQ4

2012-2013 Chevy Suburban 2500

GM LMG
GM LY5

2000-2006 Chevy Tahoe

4.8 Chevy LS V8
GM L59
GM LM7

2007 Chevy Tahoe

4.8 Chevy LS V8
GM LMG
GM LY5

2008 Chevy Tahoe

6.2 Chevy LS V8
GM LC9
GM LMG

2009-2011 Chevy Tahoe

GM LC9
GM LMG

2012-2014 Chevy Tahoe

GM LMG
GM LY5

2002-2005 Chevy Trailblazer

GM LH6

2006-2009 Chevy Trailblazer

GM LS2

2002-2009 GMC Envoy

GM LM4

2002-2006 GMC Envoy XL

GM LM4

2004-2005 GMC Envoy XUV

GM LM4

2001-2005 GMC Savana 1500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006 GMC Savana 1500

4.8 Chevy LS V8
GM L33
GM LM7
GM LQ4

2007-2014 GMC Savana 1500

4.8 Chevy LS V8
GM L33
GM LQ4

2001-2005 GMC Savana 2500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006-2013 GMC Savana 2500

4.8 Chevy LS V8
GM L33
GM LQ4

2002-2005 GMC Savana 3500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006-2013 GMC Savana 3500

4.8 Chevy LS V8
GM L33
GM LQ4

1999-2011 GMC Sierra 1500

GM L20
GM LC9
GM LMG

2007 GMC Sierra 1500 Classic

GM L33
GM L59
GM LM7

2001-2003 GMC Sierra 1500 HD

GM LQ4

2005-2006 GMC Sierra 1500 HD

GM LQ4

2007 GMC Sierra 1500 HD Classic

GM LQ4

1999-2001 GMC Sierra 2500

GM LM7
GM LQ4

2002-2004 GMC Sierra 2500

GM LQ4

2001-2011 GMC Sierra 2500 HD

GM LQ4

2007 GMC Sierra 2500 HD Classic

GM LQ4

2001-2006 GMC Sierra 3500

GM LQ4

2007 GMC Sierra 3500 Classic

GM LQ4

2001 GMC Sierra C3

GM LQ4

2000-2011 GMC Yukon

4.8 Chevy LS V8
GM L20
GM LM7
GM LY2

2012-2013 GMC Yukon

GM LC9
GM LMG

2000 GMC Yukon XL 1500

GM LM7

2001-2011 GMC Yukon XL 1500

GM L59
GM LM7
GM LQ4

2000-2011 GMC Yukon XL 2500

GM LQ4

2003-2007 Hummer H2

GM LQ4

2008-2009 Hummer H2

6.2 Chevy LS V8

2008-2009 Hummer H3

GM LH8

2009 Hummer H3T

GM LH8

1998-2002 Pontiac Firebird

GM LS1

2009 Pontiac G8

GM LS3

2004 Pontiac GTO

GM LS1

2005-2006 Pontiac GTO

GM LS2