Speedway GM LS Header Kit, 1-3/4 Round Port, 3 Inch Collector

#41869510

Speedway GM LS Header Kit, 1-3/4 Round Port, 3 Inch Collector

Name: Speedway GM LS Header Kit, 1-3/4 Round Port, 3 Inch Collector
Brand: Speedway Motors
SKU: 41869510
Price: 297.99 USD
Availability: InStock
Rating: 4.9 (9 reviews)

9 Reviews

4 Questions

This weld up header kit allows you to fabricate your own LS headers
Features 18 gauge mild steel tubing which is easily welded for a DIY style kit
These weld up headers will require some cutting, fitting, fabrication and welding

Tube Size:

1-3/4"

1-7/8"2"

$297.99

/each

In Stock

Quantity

Need Help? Call to Order

Add to a list

Select an engine to verify Fitment

Select Engine

Product Summary

Universal Fit, Roadster Header Tube Type, Steel, Raw

This weld up header kit allows you to fabricate your own LS headers
Features 18 gauge mild steel tubing which is easily welded for a DIY style kit
These weld up headers will require some cutting, fitting, fabrication and welding
Kit includes eight mandrel-bent tubes, two pre-formed collectors, two extra-thick flanges, gaskets, and bolts
1-3/4" primary tubes and 3" collector size work well for mild to high horsepower builds

See more details

Key Specs

MFG. Part #	41869510
Header Tube Type	Roadster
Exhaust Port Shape	Round
Flange Style	Standard
Primary Tube Diameter	1-3/4"

See more specs

Need To Know

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

Speedway Motors 41869510 Details

These Chevy/GM LS engine headers feature 18 gauge mild steel designed for many racing applications where LS1 engines are used. Kit includes eight mandrel-bent tubes, two pre-formed collectors, two extra-thick oval port flanges, gaskets, and bolts.

Designed for the seasoned, hands-on enthusiast, weld up headers will require some cutting, fitting and welding.

Item Details

1-3/4" Round Port, 3" Collector

Charts

Header Dimension Chart (JPG)

Guides & Documents

Headers Sizing Chart (41869510)

Choosing the Right Headers

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $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 the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Speedway Motors 41869510 Specifications

KEY SPECS
MFG. Part #	41869510
Brand	Speedway Motors
Header Tube Type	Roadster
Exhaust Port Shape	Round
Flange Style	Standard
Primary Tube Diameter	1-3/4"
Material Type	Steel
Color	Natural
Weld-Up	Yes
Collector Diameter	3 Inch
Finish	Raw
Hardware Included	Yes
Gasket(s) Included	Yes
Collector Attachment Type	Slip fit

GENERAL
Sold in Quantity	Kit
Collector Length	12"
Flange Thickness	0.31"
Port Height	1.81"
Port Width	1.81"

Ratings & Reviews

4.9

9 Reviews

Overall Assessment

Customers consistently describe our product as high-quality and great value for money. They affirm that it works well for custom builds, fitting well in a variety of vehicles including hot rods and pickup trucks. Users particularly note the utility and practicality of the kit, which allows them to design and pre-build their headers before transferring them. The materials' quality is praised with comments on the true flanges and good weldability. The bending quality is also decent, providing a cost-effective alternative to more expensive individual bends. However, customers recommend purchasing additional clamps as they were not included. Overall, our product is highly recommended to anyone wanting to build custom headers, as they won't find a superior product at a similar price point.

Write A Review

4.9

9 reviews

Filter by Ratings

Sort Reviews

Great kit.

5.0

a year ago

Pottsville, PA

Verified

Easy to work with. Fit well. Great product for a great price. Will buy again in the future.

Would Recommend

I would buy this product again

5.0

5 years ago

Lowen Wilkins

Lewisburg TN

Verified

Used it for 1941 Willys pickup truck.

Would Recommend

T bucket style exhaust

5.0

7 years ago

Cad425

Manitoba. Canada

Verified

Got the box of bends. Started with #7 cylinder worked my way up to #1 followed the frame angle so a but of trimming on lenght from cylider head out. But slow and easy had both sides done in about 5 hours. Worked out really good

Would Recommend

Nice kit

5.0

10 years ago

jtstuart

Nashville, TN

Verified

This is a nice kit. Design and prebuild your headers from 1.750 pvc. Transfer to pipe. Be sure you measure 3 times because while making mistakes in pvc is cheap mistakes in steel can be frustrating. Watch youtube for an example of custom header build. The get you some header paint with the ceramic coating and youll be happy.

Would Recommend

You won't be disappointed with this product

5.0

10 years ago

Deming nm

Verified

It's a great quality item its perfect for hot rods and any other application I would recommend this to anybody wanting to build some headers.

Would Recommend

Header kit

5.0

10 years ago

Nate

Wells MN

Verified

Worked perfect for my project.

Would Recommend

Very good kit

4.0

11 years ago

Carguy34

Denver, CO

Verified

This kit is excellent for the price. Please don't expect to be getting a high dollar kit, it's not that. The bends are decent, but not the quality you get when purchasing individual bends at $20 each. You can see and feel the clamp marks from the bender. That said, I was able to build a complete set of headers while only having to purchase one additional bend per side. This kit would probably work near perfectly if installing in a truck or other larger engine bay application. I built mine for a '67 Nova/LS1/4L80e setup that uses a custom front clip and 285/30R18 front tires. I don't have an abundance of extra room to work with. The flanges are true and sufficiently thick, the collectors fit well, and everything welded up nicely. I would highly recommend this kit as long as you have reasonable expectations on what is included. I'd also recommend purchasing some v-band clamps (or other flanges) at the same time as they are about the only thing not included. Happy building!

Would Recommend

Great product at a great price!

5.0

12 years ago

illTero63

Wichita, KS, USA

Verified

From the minute i recieved the shipment i was already impressed with the quality of everything. All of the tubing fits together well and lines up where it should at the collector and the flange. At less than $200 dollars this product is more than worth the price,. Even with me having it welded together at a local shop, i have a completely custom set of headers and have only spent a total of $350 dollars. Good luck finding a shop to build you a completely custom set of headers how YOU want them for that price, you wont. I will definately order these again if the time arises, and will recommend if i think they could work for someone else.

Would Recommend

lsx header kit

5.0

16 years ago

ma70tt

Madison, WI.

great lsx header kit for building turbo manifolds in custom applications Nate capitol city performance

Would Recommend

Showing 9 of 9 reviews

Questions & Answers

4 Questions • 4 Answers

Sort Questions

Can this kit be used to build fenderwell headers on a 64 Chevy II?

by Texaslugnut

• 8 years ago

1 answer

View Answer

Would this kit work on a dirt late model that requires rear swept exhaust? Looking for an affordable set that is not a side exit style.

by Steve

• 9 years ago

1 answer

View Answer

How far out does the collector ride from the head? Would this kit work to build something like the 930 CER100 headers for a LS-3 engine in a bucket?

by Opus

• 13 years ago

1 answer

View Answer

what is the thickness of the flanges? Does the flanges need to be machined after welding?

by KyJohnny

• 13 years ago

1 answer

View Answer

4 of 4 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

2006-2009 Chevy Impala

GM LS4

2006-2007 Chevy Monte Carlo

GM LS4

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