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Doug's Headers HG9100 Header Flange Gasket, Cadillac 425-500, Square
Doug's Headers HG9100 Header Flange Gasket, Cadillac 425-500, Square

Doug's Headers HG9100 Header Flange Gasket, Cadillac 425-500, Square

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Doug's Headers HG9100 Header Flange Gasket, Cadillac 425-500, Square
Doug's Headers HG9100 Header Flange Gasket, Cadillac 425-500, Square
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Part # 447HG9100
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Important Messages:

  • This product is discontinued.
  • This item ships directly from the manufacturer. It may take an additional business days for Dougs Headers to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
  • This item 447HG9100 is made to order. It will be shipped from our warehouse when it is produced.

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Doug's premium header flange gaskets are made extra thick from specially formulated gasket material. Out gaskets are rated up to 1100 degrees F and handle exhaust pressures up to 3700 psig (255 bar). Each gasket is designed for exact port match to out Doug's headers. Sold in pairs.

  • Extra thick, specially formulated material
  • Rated up to 1100 degrees F
  • Can handle exhaust pressures up to 3700 psig (255 bar)
  • Available in a wide variety of port shapes and the most popular engine families

Notes

  • Doug's Headers HG9100 Cadillac 425-500 square port Header Flange Gaskets
Some parts are not legal for use in California or other states with similar laws/regulations

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  • In this Tech Tip, John explains the design behind a set of headers destined for a Tri-5 using a traditional rack and pinion style steering system.
  • Product guru Jeff K. doesn't just limit his revival tendencies to those of the four wheeled variety. He also likes to leave his mark on motorcycles, giving new life to tired old two-wheelers. Follow along as he tackles a 2004 Kawasaki Vulcan.
  • In this Tech Tip, a customer asked about using a set of Small Block Chevy Sprint Roadster headers for his trike, powered by a stock 305.

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