Sportsman Series 4150 Carburetor

Siebert Performance Sportsman Series 4150 Carburetor
Built to Perform. Priced to Compete.

The Siebert Performance Sportsman Series 4150 Carburetor is the perfect entry point into high-performance racing carburetion. Designed for racers and builders who want serious performance without a premium price tag, the Sportsman Series delivers consistent power, solid adjustability, and Siebert-quality craftsmanship.

Whether you're bracket racing, dialing in a street/strip setup, or building a budget-friendly race car, the Sportsman Series gives you reliable performance with minimal compromise.

Key Features

Cast Aluminum Main Body with Precision Machining
Affordable without sacrificing performance—delivers smooth airflow and reliable metering.

Downleg Boosters
Optimized for sharp throttle response and clean fuel atomization at all RPM ranges.

Mechanical Secondaries
Provides full power when you need it—perfect for drag or street/strip applications.

Adjustable Air Bleeds and Idle Circuit
Dial in your tune for different engines, tracks, or altitudes with ease.

Screw-In Jets and Extensions
Simple tuning and fast changes to keep you on pace round after round.

Wet Tested
Each unit is tested to ensure consistent performance right out of the box.

The Sportsman Series offers dependable race-ready performance at a price racers can appreciate. Built by racers, for racers—without cutting corners.

*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.