Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
Speedway Motors Logo
America's Oldest Speed Shop ®

Search

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

SAME DAY SHIPPING! Order within the next 2 hours 57 minutes and receive same day shipping

Specs
Material Type:
Steel
Sold in Quantity:
Kit
Finish:
Natural
Tube O.D.:
1.75
Port Height:
1.81
Port Width:
1.81
Flange Thickness:
.31
Flange Style:
Round Port
Collector Diameter :
3.00
Gasket(s) Included:
Yes
Hardware Included:
Yes
Collector Length:
12.00
MFG. Part #:
418-69510
Garage Sale:
No
Speedway GM LS Header Kit, 1-3/4 Round Port, 3 Inch Collector

Click image to enlarge

Please NOTE the following about this product:

  • This item is sold as a kit.

Details

Reviews

Q & A

What's in the Box

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

Customer Reviews

Rated 4.7 out of 5 by 3 reviewers.
RATING BREAKDOWN
3 reviews
5 Stars
2
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

illTero63
Verified Purchaser
Wichita, KS, USA
Product Rating

Great product at a great price!

September 04, 2014
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.
Pros:
  • clean bends and very well lined up
  • came with 02 bungs
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

ma70tt
Madison, WI.
Product Rating

lsx header kit

January 21, 2010
great lsx header kit for building turbo manifolds in custom applications Nate capitol city performance
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

Carguy34
Verified Reviewer
Denver, CO
Product Rating

Very good kit

April 15, 2015
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!
Pros:
  • Versatile
Was this a gift?:
  • No
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

Page 1 of 1
41869510

Product Q&A

2 questions : 2 answers

1 answers

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?

Opus
Garland, TX, USA
July 25, 2013

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?

Answers

July 25, 2013
EricM
These will be approximately 16 7/16" from the head to the collector, but that can be shortened by cutting each tube shorter before welding the flange on. Yes this kit is designed to be able to build a set of header very similar to part number 930CER100 but with an LS flange.
1 answers

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

KyJohnny
Kentucky, USA
December 22, 2012

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

Answers

December 24, 2012
Jason
The flange is 5/16" thick and if welded correctly there should be no machining required
Page 1 of 1

You may also be interested in:

Speedway GM LS Header Kit, 1-5/8 Round Port, 3 Inch Collector
(Part #41869500)
                        

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.

LS1/LS6 Header Gaskets
(Part #9307588)