Product Summary

Shorty Header Tube Type, Raw, Standard Flange Style

  • Incomplete
  • This product is missing one or more items for complete installation, such as hardware, gaskets, etc
  • Fits '37-'41 cars with Vega steering and '42-'48 with stock steering
  • Gaskets and bolts included
  • Can easily be modified to work in a variety of chassis
  • These headers are treated with a temporary, light coating of anti-corrosion paint to avoid rust during shipment and on the shelf
  • Coating can be removed with lacquer thinner

Key Specs

Garage Sale TypeIncomplete
Header Tube TypeShorty
Flange StyleStandard
Primary Tube Diameter1-3/4"

Need To Know

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Ineligible for Return

Contains items that cannot be returned

Speedway Motors 91013606 Details

Garage Sale Product

This is Garage Sale priced because it is missing all of the bolts and gaskets.


Economy Flathead V8 Headers fit 1937-41 cars with Vega steering and 1942-48 cars with stock steering.




  • These probably won't fit Model T or A due to narrow frame width, particularly on passenger side.
  • These headers also may not work with stock steering on 1932-1934 cars, but are okay with the Vega cross-steer setup.
  • They work well in 1935-1941 Fords using our #91632003 mount bracket and Vega box.
  • 1942-1948 cars will probably require shimming of motor mounts to clear steering linkage.
  • Most 1949-1951 applications will have fitting problems due to interference with steering box and/or linkage.
  • On pickups the steering box can normally be clearenced slightly so that the headers can be used.


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 91013606 Specifications

MFG. Part #91013606
BrandSpeedway Motors
Garage Sale TypeIncomplete
Header Tube TypeShorty
Flange StyleStandard
Primary Tube Diameter1-3/4"
Material TypeSteel
Exhaust Port ShapeRound
Collector Diameter1-3/4 Inch
Hardware IncludedYes
Gasket(s) IncludedYes
Collector Reducers IncludedNo
Flange Thickness.30"
Port Height1.63"
Port Width1.63"
Drivers Side Dimension A7"
Drivers Side Dimension B6.83"
Drivers Side Dimension C18"
Passenger Side Dimension A7"
Passenger Side Dimension B0"
Passenger Side Dimension C20.25"
Sold in QuantityPair