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When it comes to building a reliable 700 horsepower Chevy LS swap, having the right supporting modifications is crucial. These enhancements not only increase performance but also ensure that the engine runs smoothly and lasts longer. Below, we’ll explore the best supporting mods that can help maintain reliability in your high-powered LS engine.
1. Upgraded Fuel System
A robust fuel system is vital for a 700 HP LS engine. An upgraded fuel pump, larger fuel injectors, and a high-flow fuel filter are essential components.
- Fuel Pump: Consider a pump capable of delivering at least 1000cc/min.
- Fuel Injectors: Aim for injectors with a flow rate of 80 lb/hr or higher.
- Fuel Lines: Upgrade to -8 AN lines to handle increased fuel flow.
2. Enhanced Cooling System
With increased horsepower comes increased heat. A reliable cooling system is essential to prevent overheating.
- Radiator: Upgrade to a high-performance aluminum radiator.
- Cooling Fans: Install dual electric fans for better airflow.
- Thermostat: Use a lower temperature thermostat to maintain optimal engine temperatures.
3. High-Performance Exhaust System
A high-performance exhaust system not only improves horsepower but also enhances reliability by reducing back pressure.
- Headers: Long-tube headers can significantly improve exhaust flow.
- Cat-Back System: A quality cat-back exhaust will optimize sound and performance.
- High-Flow Catalytic Converters: These help maintain emissions compliance while improving flow.
4. Quality Engine Management System
A reliable engine management system is crucial for tuning and managing the performance of your LS engine.
- ECU: Consider an aftermarket ECU for better tuning capabilities.
- Wideband O2 Sensor: This helps monitor air-fuel ratios for optimal performance.
- Tuning Software: Invest in quality tuning software for precise adjustments.
5. Upgraded Transmission
To handle the power of a 700 HP LS engine, your transmission must be capable of managing the added stress.
- Transmission Upgrade: Consider a built 4L80E or TH400 transmission.
- Torque Converter: A high-stall torque converter can improve performance.
- Transmission Cooler: An upgraded cooler is essential for maintaining transmission temperatures.
6. Strengthened Internal Components
To ensure longevity, strengthening the internal components of your LS engine is a wise choice.
- Pistons: Upgrade to forged pistons for better durability.
- Rods: Consider forged connecting rods to handle increased stress.
- Crankshaft: A forged crankshaft can provide added strength.
7. Improved Ignition System
A reliable ignition system is essential for optimal engine performance and reliability.
- Coils: Upgrade to high-performance ignition coils for better spark.
- Spark Plugs: Use iridium or platinum spark plugs for longevity.
- Wiring: Ensure high-quality ignition wiring to prevent misfires.
8. Regular Maintenance and Monitoring
Finally, regular maintenance and monitoring are key to ensuring the reliability of your LS swap.
- Oil Changes: Change the oil regularly to keep the engine lubricated.
- Fluid Checks: Regularly check coolant, transmission, and brake fluids.
- Diagnostic Tools: Use OBD-II scanners to monitor engine performance.
By implementing these supporting modifications, you can ensure that your 700 HP Chevy LS swap runs reliably and efficiently. Each component plays a vital role in maintaining the overall performance and longevity of your engine, allowing you to enjoy the power without the worry.