Photo 1
Photo 2
Photo 3
Photo 4
Photo 5
Photo 6

FlowTech Header Gaskets 99153FLT; Real Seal Round 2.150 in. 2.150 in. Multi Layer Aluminum for Chevy 396 to 454

$106.25

Part #: 99153FLT

Brand: FlowTech

UPC: 787480991539

Estimated Ship Date: 6/16/2026 (From manufacturer)

Specifications Alternative Parts

This item ships free with qualifying orders of $150 or more.
See our shipping policy for more details.

Need It Faster?

We recommend this alternative part:

Patriot Exhaust Header Gaskets 66019; Percy's Seal 4 Good Round 1.875 in. 1.875 in. Multi Layer Dead Soft Aluminum for Chevy 396 to 454

Patriot Exhaust Header Gaskets 66019; Percy's Seal 4 Good Round 1.875 in. 1.875 in. Multi Layer Dead Soft Aluminum for Chevy 396 to 454

PAT66019

$44.19

Estimated Ship Date: Today

Details

  • Water/Weather Resistant
  • Re-Useable
  • Will Not Burn Or Blow Out
  • Suitable For Port-Matching
  • Made In USA

Product Description

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 wont 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.

Specifications

Header Gaskets Series:
Real Seal
Make:
Chevy
Engine:
396 to 454
Port Shape:
Round
Height:
2.150 in.
Width:
2.150 in.
Material:
Multi Layer Aluminum
Quantity:
Sold As Pair

Alternative Parts

Patriot Exhaust Header Gaskets 66019; Percy's Seal 4 Good Round 1.875 in. 1.875 in. Multi Layer Dead Soft Aluminum for Chevy 396 to 454
Patriot Exhaust Header Gaskets 66019; Percy's Seal 4 Good Round 1.875 in. 1.875 in. Multi Layer Dead Soft Aluminum for Chevy 396 to 454

Patriot Exhaust Header Gaskets 66019; Percy's Seal 4 Good Round 1.875 in. 1.875 in. Multi Layer Dead Soft Aluminum for Chevy 396 to 454

PAT66019

$44.19

Estimated Ship Date: Today

Patriot Exhaust Header Gaskets 66125; Percy's Seal 4 Good Round 2.150 in. 2.150 in. Multi Layer Dead Soft Aluminum for Chevy 396 to 454
Patriot Exhaust Header Gaskets 66125; Percy's Seal 4 Good Round 2.150 in. 2.150 in. Multi Layer Dead Soft Aluminum for Chevy 396 to 454

Patriot Exhaust Header Gaskets 66125; Percy's Seal 4 Good Round 2.150 in. 2.150 in. Multi Layer Dead Soft Aluminum for Chevy 396 to 454

PAT66125

$44.19

Estimated Ship Date: 6/17/2026 (From manufacturer)