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EC 275 Carburetor to Intake Manifold Stud
275 Carburetor to Intake Manifold Stud
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EC 275 Carburetor to Intake Manifold Stud

Part Number: 275
Online Price: $2.25
275 Dual-Threaded Carburetor Stud – For Tillotson HL & HR to EC Manifolds
Availability: Out of Stock.

Description

275 Carburetor to Intake Manifold Stud – For Tillotson HL & HR Carburetors


Dual-Threaded Stud for EC Intake Manifold Installations


The 275 Carburetor to Intake Manifold Stud is designed to securely mount your Tillotson HL or HR carburetor to an EC intake manifold with precision and durability. This dual-threaded stud features 1/4-28 threads on the intake side and 1/4-20 threads on the carburetor side, providing a reliable fitment for high-performance racing applications.


Thread Specifications:

  • 1/4-28 fine thread (Intake Side) – Threads directly into EC billet intake manifolds
  • 1/4-20 coarse thread (Carburetor Side) – Accepts standard Tillotson HL/HR mounting nuts
  • Note: Requires 1/4-20 nuts to secure the carburetor (sold separately)


Key Features:

  • Precision-machined for optimal fitment with EC Racing billet manifolds
  • Compatible with most Tillotson HL and HR carburetors
  • Made from high-quality steel for durability under vibration and heat
  • Allows clean, professional-grade installation with correct thread engagement
  • Ideal for kart racing, small engine builds, and performance setups


What’s Included:

  • (1) Dual-threaded 275 stud, requires two per setup

Nuts not included — be sure to add a pair of 1/4-20 carburetor mounting nuts to your order.


FAQ

Q1: What carburetors is the 275 stud compatible with?

A: This stud is designed to fit Tillotson HL and HR series carburetors, such as the HL-304WX and HL-380 models.


Q2: What manifolds does this stud work with?

A: It fits EC billet intake manifolds like the 441INT, 442INT, and 443INT, which are made for high-performance karting and small engine applications.


Q3: What are the thread sizes on each side of the stud?

A: The stud features:

  • 1/4-28 fine thread on the intake manifold side
  • 1/4-20 coarse thread on the carburetor side


Q4: Are mounting nuts included?

A: No, nuts are sold separately. You will need 1/4-20 nuts to fasten the carburetor.


Q5: Why use a dual-thread stud instead of bolts?

A: A dual-thread stud allows better alignment, reduces the risk of cross-threading the manifold, and provides superior clamping force—especially critical in high-vibration, high-heat race applications.

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