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Header Gaskets - Aluminum-Layered - 396-454 Chevrolet Big Block Mark IV 1965-90

Flowtech, Dead Soft Layered Aluminum Material, Round Ports

Part # 99153FLT Be the first to write a review

Header Gaskets - Aluminum-Layered - 396-454 Chevrolet Big Block Mark IV 1965-90

In Stock
Free Shipping on orders over $150*
$76.82
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5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

See Emissions Details
FLOWTECH REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology. Constructed of separate layers of "Dead Soft" aluminum, REAL SEALS provide a do-it-once solution that will not burn or blow out. REAL-SEAL gaskets will work when an o-ringed gasket won't because the "Dead Soft" aluminum conforms to create a leak-proof seal. REAL-SEALS can also be easily trimmed for port-matching and you can use them over and over again.

Features:

  • Multi -Layer "Dead Soft" aluminum conforms to create a leak-proof seal.Water/Weather Resistant
  • Re-Useable
  • Will Not Burn Or Blow Out
  • Suitable For Port-Matching
  • Made In USA

About Flowtech

Flowtech provides high-quality performance exhaust systems at a great value. Explore our lineup of headers, mufflers, and exhaust systems at our official retailer, Holley.com!​

Brand Flowtech
Collector Gaskets IncludedNo
Emission Code5
EngineGM Big Block
Gasket LineMLS
MaterialAluminum
Port ShapeRound
Port Size2.15"
Product TypeHeader Gaskets
Thickness.125"
Type of ComponentExhaust Gaskets
UPC787480991539
Part Number99153FLT
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Fits only with port shape listed. Please verify port shape on header and match to proper gasket.
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    *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.