Product Summary

Universal Fit, Block Hugger Header Tube Type, Steel

  • Save money by welding and assembling your own headers
  • Block hugger style shorty headers for small-block Chevy
  • Includes everything you need to assemble a pair of high-quality headers
  • Mandrel bent, mild steel tubing
  • Pre-formed 4-into-1 collectors

Key Specs

Header Tube TypeBlock Hugger
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-1/2"
Material TypeSteel

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Speedway Motors 9300099 Details

  • Save money by welding and assembling your own headers 
  • Block hugger style shorty headers for small-block Chevy
  • Includes everything you need to assemble a pair of high-quality headers
  • Mandrel bent, mild steel tubing
  • Pre-formed 4-into-1 collectors
  • 1-1/2” tube primary
  • 2-1/2” collector

Note: These weld up headers are designed for the seasoned, hands-on enthusiast. This header kit will require some cutting, fitting and welding.

  • Photos above of assembled/fabricated header is provided for illustration purposes
  • Photos above of assembled/fabricated header is provided for illustration purposes

Guides & Documents

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.

Speedway Motors 9300099 Specifications

KEY SPECS
MFG. Part #9300099
BrandSpeedway Motors
Header Tube TypeBlock Hugger
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-1/2"
Material TypeSteel
ColorNatural
Weld-UpYes
Collector Diameter2-1/2 Inch
FinishRaw
Collector Attachment Type3-bolt flange
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedYes
Collector Reducer Exit Diameter2"
GENERAL
Flange Thickness.21"
Port Height1.5"
Port Width1.5"
Sold in QuantityKit

Ratings & Reviews

4.6

12 Reviews

Customers say

Customers appreciate the product for its excellent quality, fair price, and appropriateness for custom jobs. Many reviewers highlighted its solid construction and materials, particularly mentioning the thickness of the tubes. The kit was found practical, user-friendly, and versatile, tailored to various needs and applications across different types of engines. However, some users did suggest improvement in the thickness of the flanges. In comparison to pricier alternatives, customers were satisfied with the product performance, noting its superior cost-effectiveness. Some users even utilized this quality kit as a template for further upgrades.