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301VS Billet Velocity Stack – Tillotson HL-348/355/360A
301VS EC Infinite Radius Velocity Stack
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301VS Billet Velocity Stack – Tillotson HL-348/355/360A

Part Number: 301VS
Online Price: $24.99
Velosity Stack EC HL-348 355 360A
Availability: In Stock.

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Description

EC 301VS Billet Velocity Stack for Tillotson HL-348, HL-355, HL-360A Carburetors


Maximize airflow and engine performance with the EC 301VS Billet Velocity Stack, engineered specifically for Tillotson HL-348, HL-355, and HL-360A carburetors. Featuring a precision-machined radius, this velocity stack increases air velocity and flow into the carburetor, improving throttle response, fuel atomization, and overall engine efficiency.


Unlike standard filter adapters, the 301VS is designed to enhance the carburetor’s signal strength, resulting in smoother airflow and better performance across the powerband. EC’s velocity stacks are built to complement the venturi design of these Tillotson models for optimal intake dynamics.


Each stack is CNC-machined from high-quality 6061-T6 billet aluminum and comes complete with all necessary installation hardware.

Note: Always consult your rule book to ensure velocity stacks are permitted in your class before installing.


Fitment:

  • Compatible Models: Tillotson HL-348A/B/C, HL-355A/B/C, HL-360A
  • Approximate Dimensions: 2.5" OD x 1.300" ID
  • Bolt Spacing: 1.8125" (Fitted for 10-32 bolts)
  • Check your air filter for compatibility before ordering.

FAQ

What carburetors does the EC 301VS velocity stack fit?

The EC 301VS is compatible with Tillotson HL-348A/B/C, HL-355A/B/C, and HL-360A carburetors. Always verify dimensions and air filter fitment before installation.


What are the performance benefits of using a velocity stack?

Velocity stacks improve airflow and signal to the carburetor, which can enhance throttle response, engine acceleration, and fuel atomization—especially in high-performance engines.

 

Is this velocity stack CNC machined?

Yes, the EC 301VS is CNC machined from 6061-T6 billet aluminum for superior strength, precision, and performance.


What are the installation requirements?

The velocity stack fits bolt spacing of approximately 1.8125" with 10-32 fasteners. All necessary hardware is included.


Are velocity stacks legal in all racing classes?

No. Some racing classes prohibit velocity stacks. Always consult your rulebook before purchasing or installing this component.

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