Sportsman Series Billet 4150 Carburetor

Siebert Performance Sportsman Series Billet 4150 Carburetor
Precision-engineered for serious performance, the Siebert Performance Sportsman Series Billet 4150 Carburetor is built to dominate in drag racing, circle track, and high-performance street applications. This carburetor delivers great performance and consistency!

Key Features

Billet Aluminum Construction
Provides superior durability and optimal airflow for maximum performance.

Adjustable Air Bleeds
Enables precise tuning of the air-fuel ratio for specific engine and track requirements.

Custom Fuel Curve Calibration
Tailored for race, throttle stop, bracket, or street use—ready for any competition level.

Drag or Tunnel Ram Floats
Ensures reliable fuel delivery even under high-G acceleration.

Screw-In Jet Extensions
Designed for quick changes and secure installation without guesswork.

Clear Sight Glass
Allows for quick and easy monitoring of fuel levels without removing the bowls.

Stainless Bowl Screws
Built for durability and long service life, even in harsh environments.

Custom-Sized Needle and Seats (.110 to .130)
Offers precise fuel control and volume for any horsepower or fuel system setup.

Wet Tested
To insure quality and performance right out of the box.

The Sportsman Series Billet 4150 Carburetor is for those looking for premium performance. Whether you're chasing ETs on the strip or building a high-performance street machine, this carburetor offers the adjustability, quality, and performance you need to win.

*Note: All Siebert Performance carburetors are individually built to order for precision and performance. Typical build time is 4 weeks from the date of purchase.

To learn more, call us at (785)286-6813.