Small Block Chevy Header Kit, 1-3/4 Standard Port, 3 Inch Collector
Small Block Chevy Header Kit, 1-3/4 Standard Port, 3 Inch Collector
Speedway Motors

|

#41865600

Small Block Chevy Header Kit, 1-3/4 Standard Port, 3 Inch Collector

  • Features 18 gauge mild steel
  • Fabrication required
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$207.99

/each

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Product Summary

Universal Fit, Roadster Header Tube Type, Steel, Raw

  • Features 18 gauge mild steel
  • Fabrication required
See more details

Key Specs

MFG. Part #41865600
Header Tube TypeRoadster
Flange StyleStandard
Primary Tube Diameter1-3/4"
Material TypeSteel
See more specs

Need To Know

Need help?

855.313.9176
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Speedway Motors 41865600 Details

Save money by welding and assembling your own headers! These small block Chevy header kits will work for many racing and rodding applications. It includes everything you need to assemble a pair of high-quality headers: eight mandrel-bent primary tubes, two pre-formed collectors, two extra-thick standard-port flanges, two gaskets, and 12 header bolts.

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

  • Thick 5/16" steel flanges
  • Mandrel-bent 16-gauge mild steel tubing
  • Pre-formed 4-into-1 collectors
  • 8" length from longest tube flange to bend
  • 5" length from shortest tube flange to the bend

Item Details

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

Charts

Specs


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 Prop 65
CARB warning

Speedway Motors 41865600 Specifications

KEY SPECS
MFG. Part #41865600
BrandSpeedway Motors
Header Tube TypeRoadster
Flange StyleStandard
Primary Tube Diameter1-3/4"
Material TypeSteel
ColorNatural
Weld-UpYes
Collector Diameter3 Inch
FinishRaw
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedNo
Collector Attachment TypeSlip fit
GENERAL
Sold in QuantityKit
Notes16 Gauge
Flange Thickness0.31"
Tube I.D.1.6"
Material Thickness0.06"
Cone Length12"

Ratings & Reviews

4.9

17 Reviews

Overall Assessment

Customers highly appreciate the U weld headers for their quality, affordability, and utility in custom projects. Its ability to tailor fit with any project gives it an edge over pre-made headers. The product is praised for its sturdy material (18 gauge), ease of modification, and impeccable workability. It's commended for its high-quality, non-rusty flanges that resist warping, alongside generous tubing supply. The smoothness of the mandrel bends and tube size accuracy also stand out. Regardless of the application, from a custom rat rod to a CJ-5 Jeep project, this product delivers exceptional performance while remaining budget-friendly.

Write A Review

4.9

17 reviews

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15

4

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Great Product!

5.0

5 months ago

Robert

Lees Summit, MO

Verified

Get quality parts, idea for my purpose on a custom exhaust system.

Would Recommend

I would buy this kit again.

5.0

a year ago

Willy

Indiana

Verified

Thick flanges

Would Recommend

Weld your own headers

5.0

2 years ago

Jake

Idaho

Verified

They look great

Great for making custom headers cut them up

5.0

2 years ago

Zippy

Cadillac mi

Verified

To make custom headers

Would Recommend

U weld headers done your way

5.0

3 years ago

Tim

Concord Ca.

Verified

This is my second pair of U weld headers. My car is a custom rat rod, so everything has to be made, no premade header would work. I'm not a car builder nor do I have any specized tools. I pie-cut each pre bent tube to get the angle and length I needed to drop the header collector down to the bottom of the body and avoid hairpin radius rods . There was plenty of material and the gage of the material (18 ga.) was thick enough to weld without blowing through. The price is right and will fit anyones budget

Would Recommend

Exactly what I ordered

5.0

4 years ago

Joe

Arizona

Verified

Came with everything I needed great quality shipping was quick other then the shipping rate kept glitching telling me 800$ to get it shipped to arizona 😂 so I just went through Amazon and got free shipping Lol

Nice

5.0

4 years ago

Dimebag Darrell

Jacksonville ,Florida

Verified

Used for a s10 v8 swap

Would Recommend

SBC HEADER KIT

5.0

4 years ago

David

AZ

Verified

A perfect solution for my CJ-5 Jeep project.

Would Recommend

Love them!.

5.0

5 years ago

Tillery

Benton, Arkansas

Verified

They are easy to work with and not to heavy.

Would Recommend

I would definitely buy this product again

5.0

5 years ago

slacker

Melbourne FL

Verified

product was better than I expected.

Would Recommend

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Showing 10 of 17 reviews

Questions & Answers

2 Questions • 2 Answers

I also have a header dimension question. I realize this is a u-weld kit, but are the primary tubes long enough to get the same 14.5 A dimension as your Part # 930CER100 header?

by George

• 8 years ago

1 answer

View Answer

Hello, I have a header dimension question. Is header kit # 930sk158, "B" dimension, the same as part number 930cer100, which is 13.75 inches? Thanks, Gary Baker

by Gary

• 15 years ago

1 answer

View Answer

2 of 2 questions shown

Fitment

  • 2-Piece Rear Main Chevy 283

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

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  • 2-Piece Rear Main Chevy 400

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  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

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  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

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  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 265

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  • 2-Piece Rear Main Chevy 283

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  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

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  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

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Customer Impersonation Script