1. Home
  2. Carburetors
  3. Tillotson
  4. HR-Series
  5. HR-181B
  6. TIllotson 1.355 HR Flange Gasket
TIllotson 1.355 HR Flange Gasket
16B-241 TIllotson 1.355" HR Flange Gasket
Write a Review

TIllotson 1.355 HR Flange Gasket

Part Number: 16B-241
Online Price: $0.99
16B-241 Tillotson 1.355-Inch HR Flange Gasket (.020" with Pulse Hole)
Availability: In Stock.

Send to:

*We'll ask for shipping info at checkout

Description

16B-241 Tillotson HR Flange Gasket – 1.355" Bore with Pulse Hole


The 16B-241 OE Tillotson Flange Gasket is designed to provide a reliable seal between your HR-series carburetor and the intake manifold. Featuring a 1.355” bore, an approximate .020” thickness, and a .125” pulse hole, this gasket ensures proper pulse signal transfer for consistent fuel delivery in high-performance engine setups.


Key Features:

  • 1.355” bore diameter – perfectly matches HR-series intake ports
  • .020” thickness – delivers a tight seal without affecting airflow
  • .125” pulse hole – critical for proper operation of internal fuel pump
  • Designed for HR-series Tillotson carburetors
  • Durable paper gasket material – precision cut for performance builds


Compatible Models:

The 16B-241 gasket fits the following Tillotson HR carburetors:

  • HR-181B
  • HR-184A
  • HR-190A
  • HR-191C
  • HR-191G
  • HR-196A

Also compatible with other applications using a standard HR-series intake flange with a 1.355" bore.


Installation Tips:

  • Always punch out the pulse hole prior to installation to ensure proper fuel pump function.
  • If your intake uses a notched pulse port instead of a clean circular opening, fuel exposure may cause gasket deterioration, which can block the pulse hole or lead to erratic engine tuning.
  • For optimal reliability and performance, we recommend using EC-built intakes which are precision-matched to these gaskets.


Specifications:

  • Bore Size: 1.355"
  • Gasket Thickness: ~.020"
  • Pulse Hole Diameter: .125"
  • Material: Treated fiber/paper gasket material
  • Position: Between carburetor and intake manifold


Ensure consistent pulse signal and prevent fuel leaks with the 16B-241 Tillotson HR Flange Gasket – precision-built for HR-series carburetors.

FAQ

Q1: What carburetors is the 16B-241 gasket compatible with?

A: This gasket fits Tillotson HR-series carburetors including HR-181B, HR-184A, HR-190A, HR-191C, HR-191G,and HR-196A, as well as other applications using a 1.355" flange bore.


Q2: What is the purpose of the pulse hole in this gasket?

A: The .125" pulse hole allows the internal fuel pump in your carburetor to receive a pressure signal from the crankcase. Without it, fuel delivery can be disrupted.


Q3: Do I need to punch the pulse hole before installation?

A: Yes. You must manually punch the pulse hole before installing the gasket to ensure correct alignment and functionality. Leaving it unpunched may block the pulse signal.


Q4: What happens if I use a notched intake instead of a round one?

A: A notched pulse port can expose the gasket to raw fuel, potentially degrading the material and causing irregular fuel pulses. Use only precision-matched intakes, such as those built by EC Carburetors, to avoid issues.


Q5: Is the 16B-241 gasket suitable for methanol and gas engines?

A: Yes, this high-quality fiber gasket is suitable for both methanol and gasoline applications, assuming proper carburetor and intake compatibility.

Related Items

Recently Viewed Items