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Spark plug gap

Forum: C3 Engines, Driveline and Handling

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Spark plug gap

Posted: 6/20/06 5:58amMessage 1 of 3

b

Gold Member

TOPTON, PA - USA

Joined: 5/5/2002

Posts: 313

Vette(s): 71 454 convertible, mulsanne blue,a/c, matching numbers, 48K miles

I can't locate my shop manual and was wondering what the factory spark plug gap should be for a 71 LS5 454. I think it should be .35 but need to verify.

Thanks

Tom
71 454/365 Mulsanne Blue Convertible

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Spark plug gap

Posted: 6/20/06 10:08amMessage 2 of 3

P

Former Member

Virginia City, NV - USA

Joined: 1/19/2005

Posts: 314

Vette(s): 1979 Coupe, white in color

Tom, ya left off the zero, but essentially you are correct. The gap is 0.035.

Dave

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Spark plug gap

Posted: 6/20/06 10:11amMessage 3 of 3

b

Gold Member

TOPTON, PA - USA

Joined: 5/5/2002

Posts: 313

Vette(s): 71 454 convertible, mulsanne blue,a/c, matching numbers, 48K miles

Thanks Dave, you're right .35 would be one hell of a gap!

Tom

Tom
71 454/365 Mulsanne Blue Convertible

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