GM firing orders
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[[Image:Chevy_firing_orders.jpg]] | [[Image:Chevy_firing_orders.jpg]] | ||
| + | *In the case of reverse rotation marine engines where the distributor rotation is opposite of a standard rotation engine, the reverse rotation firing order becomes '''1-2-7-5-6-3-4-8'''. | ||
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==Buick== | ==Buick== | ||
===Buick V8=== | ===Buick V8=== | ||
[[File:Buick firing order.jpg|border|250px|]] | [[File:Buick firing order.jpg|border|250px|]] | ||
| − | *The 1970 Buick 350 has a firing order of 1-8-4-3-6-5-7-2 and the rotor spins counterclockwise. The number 1 distributor cap terminal is at 5 o'clock | + | *The 1970 Buick 350 ci engine has a firing order of 1-8-4-3-6-5-7-2 and the rotor spins counterclockwise. The number 1 distributor cap terminal is at 5 o'clock viewed from in front of the car. |
| − | *1963-66' 401 and 425 | + | *1963-66' 401 and 425 ci Buick engines have a firing order 1-2-7-8-4-5-6-3 and the rotor spins clockwise . The number 1 distributor cap terminal is between 8 and 9 o'clock viewed from in front of the car. |
| − | *The 1964- | + | *The 1964-'66 300 and 340 ci Buick engines have a firing order of 1-8-4-3-6-5-7-2 and the rotor spins clockwise. The number distributor cap terminal is at the 4 o'clock position viewed from in front of the car. |
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==Cadillac== | ==Cadillac== | ||
===331, 365, and 390 V-8 1962-back=== | ===331, 365, and 390 V-8 1962-back=== | ||
| − | [[File:Cad firing order 390 62-back.jpg|frame|left|1962-back 331, 365, and 390 ci with counterclockwise distributor rotation]] | + | [[File:Cad firing order 390 62-back.jpg|frame|left|1962-back 331, 365, and 390 ci with counterclockwise distributor rotation.]] |
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===390, and 429 ci 1963-up === | ===390, and 429 ci 1963-up === | ||
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