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Need the spark plug diagram for a 77 gmc 454 engine

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need the spark plug diagram for a 77 gmc 454 - zjlimited_580.jpg

V8 engines with points-type ignition system Firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise





V8 engines with electronic distributor ignition system Firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise


Hope heslp.

Posted on Jan 30, 2011

  • Jerry Conners Aug 01, 2011

    Go to www.autozone.com and register. Once you do that, log in and they have ton's of help. Schematic's, repair info, home delivery for parts.....a great site!!! Good luck! Try it!

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I need diagram Isusu rodeo 2.2l 2000 timing belt market

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