Coil Bracket Bolt Size

[Speed_Dreamin']

Anybody know what the diameter and thread pitch is of the bolt at the back of the coil/ignition module bracket? Mine is missing.

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[bison]

8mmx1.25mm

 

[Speed_Dreamin']

Amazing that you know that. Thanks!

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[earlbrown]

The trick with knowing the threads is going by what it bolts to. If they go into turbo specific parts like plenums, accessory brackets, fuel rails, crossover bolts, etc.... they are metric. If they go into plain old Buick 3.8 iron they're S.A.E. Stuff like headers, intake base bolts, crank hub (but not the pulley!) etc....