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Old 02-03-2006, 01:30 AM
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speedfreak speedfreak is offline
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Re: Has anyone 5.8l engine

The 5.0HO firing order is actually a little better also since it eliminates any possibility of crossfiring between plug wires. I think it might be between #7 and 8.

Also, you cannot simple bolt 302 heads onto a 351W. 351Ws have 1/2" head bolts whereas 302s have smaller 7/16" bolts. The 302 heads have to have the bolts holes drilled out. If you want to put 351W heads on a 302(or nearly any aftermarket head meant to fit both engines), you'll need either stepped washers or stepped bolts for best alignment.
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