1. Home
  2. Carburetors
  3. Velocity Stack & Filter Adaptors.
  4. Tillotson Velocity Stack & Filter Adaptors
  5. EC 320VS Tillotson HL-380 Billet Velocity Stack
EC 320VS Tillotson HL-380 Billet Velocity Stack
320VS EC Infinite Radius Velocity Stack
Write a Review

EC 320VS Tillotson HL-380 Billet Velocity Stack

Part Number: 320VS
Online Price: $29.99
EC 320VS Billet Velocity Stack – Fits Tillotson HL-380 Carburetors
Availability: In Stock.

Send to:

*We'll ask for shipping info at checkout

Description

EC 320VS Billet Velocity Stack for Tillotson HL-380 – CNC Machined Performance Upgrade


Upgrade your Tillotson HL-380 carburetor with the EC 320VS Velocity Stack, precision-engineered to maximize airflow and throttle response. A proven design that optimizes air velocity and signal strength for peak carburetor performance.


Unlike plain filter adapters, the 320VS velocity stack significantly improves intake efficiency, making it the preferred choice in classes where velocity stacks are allowed. Its smooth, contoured shape guides incoming air more effectively, increasing overall flow to support higher engine output.


Key Features:

  • Precision CNC Machined from 6061-T6 Billet Aluminum for durability and performance
  • Infinite Radius Venturi Design – Developed by EC, now widely adopted across the industry
  • Improves Airflow & Signal Strength for enhanced throttle response and fuel atomization
  • Direct Fit for Tillotson HL-380A & HL-380B Carburetors (2.5" OD – confirm filter compatibility)
  • Includes All Necessary Hardware for easy installation

Note: Always check your racing class rules to ensure velocity stacks are legal before installation.


Fitment Details:

  • Outside Diameter: ~2.5"
  • Inside Diameter: ~1.402"
  • Bolt Spacing: ~1.9685" (Fitted for 8-32 bolts)

FAQ

What does a velocity stack do for a carburetor?

A velocity stack smooths and accelerates airflow into the carburetor, improving air volume and signal strength, which can increase throttle response and overall engine performance.


Will the EC 320VS fit my Tillotson HL-380 carburetor?

Yes, the EC 320VS is specifically designed for the Tillotson HL-380A and HL-380B. It features a 2.5" OD and a bolt spacing of approximately 1.9685". Always verify your air filter dimensions before purchase.


Is this velocity stack legal in my racing class?

Velocity stack legality depends on your racing organization’s rulebook. We recommend checking class regulations before installing.


What material is the EC 320VS made from?

Each EC 320VS velocity stack is CNC machined from high-grade 6061-T6 billet aluminum, offering strength, precision, and lightweight performance.


Does it come with installation hardware?

Yes, all necessary hardware for installation is included with the EC 320VS velocity stack.

Related Items

Recently Viewed Items