Building a 350 engine for your 1977 El Camino Classic can be an exciting project. Here are some ideas to consider:
Performance Camshaft: Upgrading the camshaft can significantly improve engine performance. Choose a camshaft that suits your desired powerband, such as a mild street cam for low-end torque or a more aggressive cam for high-RPM power.
Cylinder Heads: The stock heads on a 350 engine can be improved for better performance. Consider upgrading to aftermarket heads with larger intake and exhaust ports, better airflow, and improved combustion chamber design.
Intake Manifold: A high-performance intake manifold can enhance airflow to the cylinders, improving horsepower and torque. Choose one that matches your intended use, such as a dual-plane manifold for low-end torque or a single-plane manifold for high-RPM power.
Carburetor or Fuel Injection: Consider upgrading to a larger carburetor or installing a fuel injection system for better fuel delivery and engine response. Ensure it is properly sized for your engine's airflow requirements.
Exhaust System: Upgrading the exhaust system can improve performance and give your El Camino a more aggressive sound. Consider installing headers, high-flow catalytic converters, and a performance-oriented exhaust system.
Ignition System: A high-performance ignition system can improve spark energy and timing control, resulting in better combustion and power. Upgrade to a high-energy ignition coil, performance distributor, and ignition timing controller if necessary.
Cooling System: Ensure your cooling system is up to the task of handling the increased power. Consider upgrading to a larger radiator, high-flow water pump, and electric fans to maintain optimal engine temperature.
Bottom End Upgrades: Depending on your power goals, you may want to consider strengthening the engine's bottom end components. This can include upgrading the pistons, connecting rods, and crankshaft for improved durability.
Engine Tuning: Once the modifications are complete, tuning the engine's fuel and ignition parameters is crucial. Consult with a professional tuner or use a standalone engine management system to optimize performance and drivability.
Remember to choose components that are compatible with each other and suit your specific goals and budget. It's always a good idea to consult with experienced engine builders or performance specialists who can provide tailored advice based on your specific requirements and preferences.