For street and race engines using 4150 flange manifolds, selecting a high-quality nitrous plate is essential for even distribution, reliable atomization, and predictable tuning. This guide highlights five top 4150 nitrous plates and kits, focusing on flow, port count, and compatibility. Each option emphasizes precision spray patterns and robust construction to help maximize performance while maintaining drivability. Compare features, installation considerations, and compatibility to choose the right plate for your setup.
| Product | Brand | Key Features |
|---|---|---|
| Bonbo 4150 Nitrous Plate 00-44500 | Bonbo | 600 HP max flow; 16 discharge ports; 0.750″ plate thickness; 360° distribution |
| Nitrous Express NP504 4150 ProPower Plate | Nitrous Express | Next-generation performance; superior distribution; outstanding atomization |
| Nitrous Express 4150 Assassin Plate (NP674) | Nitrous Express | Precise fitment; advanced single-stage plate; OEM-like compatibility |
| Nitrous Express Hitman 4-BBL Plate Kit (40040-10) | Nitrous Express | Three horsepower settings; lightweight bottle hardware; affordable entry option |
| Nitrous Express NX504 4150 100-500 HP Pro Power Plate Conversion Kit | Nitrous Express | Improved performance and reliability; genuine high-quality parts |
Bonbo 4150 Nitrous Plate 00-44500
The 00-44500 nitrous plate from Bonbo is designed for carbureted and EFI single-plane 4150 flange intake manifolds. It offers a 600 HP max flow with 16 discharge ports (16 x 16) and a plate thickness of 0.750 inches for precise atomization and coverage across the plenum. The design aims to deliver high throughput while addressing distribution and tuning challenges common with various engine and intake manifolds.
Nitrous Express NP504 4150 ProPower Plate
The NP504 ProPower Plate from Nitrous Express represents next-generation nitrous performance and reliability. It emphasizes superior distribution and outstanding atomization to improve overall power delivery. This plate is tailored for 4150 flange carbureted or EFI setups, focusing on consistent spray and tunable flow across a range of power goals.
Nitrous Express 4150 Assassin Plate (NP674)
The Assassin Plate for 4150 flange carbureted engines is designed for precise, high-efficiency nitrous delivery. It’s built around advanced single-stage plate technology with OEM-like fitment. The system includes hardware and is engineered to optimize distribution while simplifying installation for DIY enthusiasts and professionals alike.
Nitrous Express Hitman 4-BBL Plate Kit (40040-10)
The Hitman 4-BBL Nitrous Kit is aimed at enthusiasts seeking an affordable yet capable nitrous option. It features a 3 horsepower setting range (100-150-200 HP) and comes with a Lightning bottle valve and stainless bottle brackets. This Phase 3 series plate emphasizes performance improvements and reliability without a bottle, suitable for users upgrading from basic systems or on a budget.
Nitrous Express 4150 Assassin Plate (NP674) Kit Details
The Assassin 4150 plate kit is designed for a precise and compact install with extensive 3D scanning support for OEM-like fitment. This direct-fit street series system uses advanced design to ensure a reliable, easy installation and a consistent spray pattern across the platter, with compatibility tailored to 4150 flange carbureted engines.
Buying Guide
- Engine compatibility: Ensure the plate fits 4150 flange manifolds and matches your carbureted or EFI setup.
- Flow capacity: Consider horsepower targets; plates on the higher end of flow (e.g., 600 HP) are better for big builds, while lower-flow options suit smaller power goals.
- Discharge port configuration: A higher number of ports and uniform spacing promote even distribution and atomization.
- Plate thickness and build quality: Thicker plates can provide durability and reduce flex under load; look for robust materials and precise machining.
- Installation and fitment: OEM-like or direct-fit designs reduce modification time and potential leaks; verify hardware and brackets are included if needed.
- Upgrade path: Some options come as plates or complete kits; assess whether you need just a plate or a full kit with bottle and valve components.
- Tuning considerations: Models with adjustable jetting allow finer control of nitrous and fuel delivery; plan for proper calibration to avoid lean conditions.
- Reliability and support: Brands with well-documented specs and accessible customer support help during setup and tuning.