GM firing orders
From Crankshaft Coalition Wiki
(→368, 425, 472, and 500 ci 1968-up) |
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==Overview== | ==Overview== | ||
Firing orders for GM engines. | Firing orders for GM engines. | ||
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==Chevrolet== | ==Chevrolet== | ||
[[Image:Chevy_firing_orders.jpg]] | [[Image:Chevy_firing_orders.jpg]] | ||
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| + | *When using a 4-7 swap camshaft in a Chevrolet Small or Big Block, the firing order will change to 1-8-7-3-6-5-4-2. | ||
*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'''. | *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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[[File:Sbc fo.jpg]] | [[File:Sbc fo.jpg]] | ||
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==Buick== | ==Buick== | ||
===Buick V8=== | ===Buick V8=== | ||
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<br style="clear:both"/> | <br style="clear:both"/> | ||
===390, and 429 ci 1963-up === | ===390, and 429 ci 1963-up === | ||
| − | *1-8-7-2-6-5-4 | + | *1-8-7-2-6-5-4 |
*Clockwise rotation | *Clockwise rotation | ||
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*1-5-6-3-4-2-7-8 | *1-5-6-3-4-2-7-8 | ||
*Clockwise rotation | *Clockwise rotation | ||
| − | [[File:472. | + | [[File:472.png]] |
===4.1L and 4.5L=== | ===4.1L and 4.5L=== | ||
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===Northstar=== | ===Northstar=== | ||
*1-2-7-3-4-5-6-8 | *1-2-7-3-4-5-6-8 | ||
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