Support the highest power goals of your LS project with this 2200cc SouthBay Fuel Injectors set, purpose‑built for 5.3L LS engine swaps in performance street, strip, and full‑race applications. These injectors deliver the massive fuel volume required for 1000+ HP turbo, supercharged, or alcohol‑burning LS builds, while maintaining the precision and reliability demanded by professional tuners.

Designed to integrate seamlessly with modern EFI systems—including Holley Terminator X and Dominator—these injectors maintain a linear flow curve and impressive stability at low pulse widths, allowing for a surprisingly manageable idle even in extreme‑output engines.

Each set undergoes rigorous dynamic flow‑matching within 1%, ensuring perfectly balanced fuel delivery across all eight cylinders. This level of precision is critical for engine longevity under high boost and elevated cylinder pressures.

Constructed to resist the gumming and corrosive effects of E85 and Methanol, these injectors are the definitive choice for competitive racing, high‑speed performance, and serious LS enthusiasts.

Key Features

• 2200cc/min @ 43.5 PSI (2500cc+ @ 58 PSI)

• Engineered for 5.3L LS swaps in Nova, Chevelle, truck, and custom builds

• Flow‑matched within 1% for maximum cylinder protection

• High‑impedance design for broad ECU compatibility

• Stable low‑pulse operation for improved idle quality

• Compatible with pump gas, E85, Methanol, and race fuels

• Ideal for 1000+ HP turbo, supercharged, and alcohol applications

• Built to resist ethanol‑related corrosion and gumming

⚠️ E85 & Race Fuel Warning

Ethanol‑based fuels (E85) and oxygenated race fuels are highly corrosive. To maintain injector performance and lifespan:

• Use proper filtration

• Avoid long‑term storage with ethanol in the system

• Inspect injectors regularly

• Flush fuel system when switching between gasoline and alcohol fuels

Failure to follow these guidelines may reduce injector service life.

Fitment

LS‑Swapped Applications (5.3L)

• Chevrolet Nova

• Chevrolet Chevelle

• GM Trucks

• Custom LS swap builds

• Holley Terminator X / Dominator EFI systems

(Any 5.3L LS platform requiring high‑impedance, high‑flow injectors.)