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Product Summary

  • Includes support strap, spacers and new bolts for the center main cap
  • Also can be used on the front main cap but pan modification is required
  • Requires no machine work

Key Specs

MFG. Part #5603408
BrandSpeedway Motors

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Speedway Motors 5603408 Details

If you're building a serious flathead for either street or racing, you need one of these flathead main cap supports. These supports include the support strap, spacers and new bolts for the center main cap. It adds an incredible amount of strength to the lower end. Can also be used on the front main cap but pan modification is required. Requires no machine work.

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 5603408 Specifications

KEY SPECS
MFG. Part #5603408
BrandSpeedway Motors