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Tillotson 1-Inch Flange Gasket .020 Thick w/Pulse Hole
198P Tillotson 1.000 Flange Gasket .020 Thick
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Tillotson 1-Inch Flange Gasket .020 Thick w/Pulse Hole

Part Number: 198P
Online Price: $0.99
198P Tillotson Flange Gasket – 1.00" Bore, .020" Thick
Availability: In Stock.

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Description

198P Tillotson 1.00" Flange Gasket – .020" Thick with Pulse Hole


The 198P Tillotson Flange Gasket is a precision-cut gasket made to seal the connection between your 1.00” bore Tillotson carburetor and intake manifold. Made from durable, heat-resistant gasket material, this gasket includes a .125” pulse hole for proper fuel pump operation.


Ideal for racing engines, small engine builds, and performance karting applications, this gasket helps ensure a consistent vacuum signal, optimal fuel delivery, and reliable carb tuning.


Key Features:

  • Fits Tillotson carburetors with 1.00” throttle bore
  • .020” thickness – standard for most performance/racing setups
  • .125” pulse hole allows proper fuel pump function
  • Durable, high-quality gasket paper resists heat and fuel exposure
  • Ensures a clean, leak-free seal between the carb and intake
  • Used in EC-manufactured and blueprint-quality setups


Installation Tips:

  • Ensure pulse hole alignment with both the carburetor and intake pulse channel.
  • If unpunched, manually punch the pulse hole before installation.
  • Avoid intakes with notched pulse ports — these can expose the gasket to raw fuel, causing premature deterioration or pulse signal disruption.
  • For best results, use EC Built Intakes designed with proper pulse port geometry.


Specifications:

  • Throttle Bore: 1.000”
  • Thickness: .020”
  • Pulse Hole Diameter: .125”


Compatible With:

  • Tillotson HL-334
  • HL-304
  • HL-348
  • And other 1.00” bore HL-series Tillotson carburetors


Whether you're fine-tuning your race engine or refreshing a performance build, the 198P Tillotson Flange Gasket delivers a consistent seal and performance you can trust.

FAQ

Q1: What carburetors is the 198P gasket compatible with?

A: The 198P fits Tillotson carburetors with a 1.00" throttle bore, including popular models like HL-334, HL-304, HL-348, and others used in racing and performance applications.


Q2: Why is the pulse hole important?

A: The .125" pulse hole ensures crankcase pressure is transferred to the internal fuel pump of the carburetor. Misaligned or blocked holes can cause fuel delivery issues.


Q3: What thickness is the gasket?

A: The gasket is .020 inches thick, which is standard for most rulebooks and provides a stable, reliable seal for consistent performance.


Q4: Can I use this gasket with notched intakes?

A: It’s not recommended. Notched intakes can expose the gasket to fuel, leading to gasket breakdown or pulse signal inconsistencies. For best results, use EC Built Intakes.


Q5: Do I need to punch the pulse hole myself?

A: If your gasket is unpunched, yes. Always punch the pulse hole before installation to maintain correct carb function and tuning.


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