Another Hoo Scoop Question

[DartDad Too]

I putting twin hood scoops on my 72 Dart and have a nice diagram for the hole locations but it does not say what size the holes are. Can anyone tell me the correct hole size?

My stud kit contains the stud, soft washer, a steel washer and nut. What is the correct order to assemble these in?

 

[res1vw21]

I believe the hood scoop holes are 4 1/8 but a 4in hole will work (the bimetallic hole saw is usually cheaper for a 4 in)

Here are the seals http://www.mts.net/~hpokrant/Miscellaneous/Hood Scoop Seals.htm

 

[Burntorange70]

Here this thread should help you out some.

http://www.forabodiesonly.com/mopar/showthread.php?t=22641