Product Summary

267, 283, 302, 305, 307, 327, 350, 400, Steel, Natural

  • Shorty design that gives maximum ground clearance and works with floor shift manual transmission only
  • 1 5/8" primary tubes 3" collectors and are for S/B Chevy without angle plugs

Key Specs

Header Tube TypeShorty
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel

Need To Know

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Return Policy

Speedway Motors 9300109 Details

These S/B Chevy headers are a shorty design that give maximum ground clearance and work with floor-shift manual transmissions only. Features 1-5/8" primary tubes and 3" collectors. Built with surface machined thick steel flanges for a great seal and mandrel bent mild steel tubing.

Headers come with installation hardware, collector reducers, gaskets and instructions.  

  • 1967-81 Camaro/Firebird
  • 1968-87 Chevelle, Malibu and El Camino
  • Must use non-shell style motor mounts
  • Manual Transmissions Only




These headers are treated with a light coating of anti-corrosion paint to avoid rust during shipment and on the shelf. This coating must be removed entirely before painting with a high-temp paint for final installation. Coating can be removed with lacquer thinner.

CARB Warning

For race/ off road use only

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. 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 9300109 Specifications

MFG. Part #9300109
BrandSpeedway Motors
Header Tube TypeShorty
Exhaust Port ShapeRound
Flange StyleStandard
Primary Tube Diameter1-5/8"
Material TypeSteel
Collector Diameter3 Inch
Collector Attachment Type3-bolt flange
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedYes
Collector Reducer Exit Diameter2.5"
Collector Length4"
Flange Thickness.31"
Port Height1.68"
Port Width1.37"
Drivers Side Dimension A4.1"
Drivers Side Dimension B13.63"
Drivers Side Dimension C18.38"
Passenger Side Dimension A5.88"
Passenger Side Dimension B10.2"
Passenger Side Dimension C25.63"
Sold in QuantityPair