Key Specs

MFG. Part #HG9355
BrandDoug's Headers
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Doug's Headers HG9355 Details

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
  • Doug's Headers HG9355 Olds 400-455 rectangle port Header Flange Gaskets
  • Doug's Headers HG9355 Olds 400-455 rectangle port Header Flange Gaskets

Doug's Headers HG9355 Specifications

KEY SPECS
MFG. Part #HG9355
BrandDoug's Headers
GENERAL
GTIN Code694342511937

Questions & Answers

Fitment

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 403

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 425

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 403

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 403

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 403

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 403

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 403

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 425

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 425

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 403

  • Oldsmobile 425

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 425

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 425

  • Oldsmobile 425

  • Oldsmobile 425

  • Oldsmobile 425

  • 455 Oldsmobile Big-Block V8

  • Oldsmobile 403

  • 455 Oldsmobile Big-Block V8

Customer Impersonation Script