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Old 06-22-2011, 07:38 PM
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bonneville Joe bonneville Joe is offline
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Quote:
Originally Posted by gearbanger View Post
What are you guys talking about when you say "180" headers? Are you talking about 360 headers where each cylinder is paired with the one that fires 360 deg of crank revolution after it? That is the only kind of header I have ever heard of that was referred to in degrees. And it required tubes traveling from the right bank to the left bank and vice versa.
360* would be a full revolution which means you're referring to the same cylinder. 180* is only half of a revolution which means one cylinder is directly opposite of the other. If you stand facing north and make a 360* turn your still facing north. So 180* headers means if the #1 cylinder fires 180* away is #7 which would be where that header tube attaches.

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