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What size nut on engine ground stud 1991 454 350HP

S

slauder

Regular Contributor
Thanks... I want to add anothe

Thanks... I want to add another wire and nut to to the end of stud that has many wires tighten down already...

Scott
 
"going on memory, they are 3/8

"going on memory, they are 3/8*16, just like the exhaust manifold mounting hardware"
 
Thanks you might save me a tri

Thanks you might save me a trip to West Marine...
I need a Micrometer... looks like *16 for sure its course thread
 
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