Identify the Firing Order:
The firing order for a Chevy 350 engine is 1-8-4-3-6-5-7-2. This sequence represents the order in which the spark plugs fire in the cylinders.
Locate the Distributor Cap:
The distributor cap is usually located on the front of the engine near the distributor. It is a round component with multiple terminals or plug wires connected to it.
Distributor Cap Terminals:
The distributor cap will have eight terminals numbered counterclockwise from 1 to 8, starting from the terminal closest to the engine block.
Assign Spark Plug Wires:
Connect the spark plug wires to the corresponding terminals on the distributor cap based on the firing order. Here's how to match the terminals to the firing order:
1. Terminal 1: Connect to spark plug wire for cylinder 1.
2. Terminal 8: Connect to spark plug wire for cylinder 8.
3. Terminal 4: Connect to spark plug wire for cylinder 4.
4. Terminal 3: Connect to spark plug wire for cylinder 3.
5. Terminal 6: Connect to spark plug wire for cylinder 6.
6. Terminal 5: Connect to spark plug wire for cylinder 5.
7. Terminal 7: Connect to spark plug wire for cylinder 7.
8. Terminal 2: Connect to spark plug wire for cylinder 2.
The distributor cap terminal numbering may differ slightly depending on vehicle models and years, but the basic principle remains the same. Double-check the firing order and terminal assignments specified in the vehicle's service manual or repair information for your specific engine model.
