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Thread: What size screws for hood scoop?

  1. #1
    Papa's Avatar
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    What size screws for hood scoop?

    I want to use SS screws for the hood scoop. What is the recommended size and what washers work best?
    My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
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    8-32 x 5/8" Button Socket Head Screw, 304SS (18-8SS)
    8-32 Hex Nut, Nylon Insert Self Locking, 304SS (18-8SS)
    #8 Flat Washer, 304SS (18-8SS)

    I used 17 each on my scoop, starting 3/4" from the front and spaced 3-3/8" apart.
    The odd screw is in the center rear of the scoop.

    Hope that helps!

    BTW Breeze can supply if you'd rather not buy packs of 50 or 100 pieces from McMaster.
    Available with nylock nuts or acorn nuts
    https://www.breezeautomotive.com/?s=...t_type=product
    Last edited by Mark Reynolds; 01-16-2019 at 04:43 PM. Reason: type and added link to product on web
    www.breezeautomotive.com 2005 FFR Mk3 Roadster, 302/340hp, MassFlo EFI, Breeze Pulleys, T5, Aluminum Flywheel, 3-link rear with Torsen Diff and 3.27:1 gears, Power Steering, Breeze Front Sway Bar, SN-95 Spindles with outboard SAI Mod, Breeze Battery Mount, QA1 Externally Adjustable Shocks, Quick Release Steering Wheel, Vintage Race seats, GM Arctic White, Sky Blue Scoop, Hidden Hinges, Billet Aluminum Side-view Mirrors, 2,183lbs wet. 1967 Mustang Fastback, Dark Moss Green, black interior, '67 14" styled steel wheels, 2000 Explorer 302 w 5.0 Cam, Quickfuel 450 CFM, 289 Hi-Po Dual exhaust, C4, lowering springs w Shelby drop.

  3. #3
    Papa's Avatar
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    Quote Originally Posted by Mark Reynolds View Post
    8-32 x 5/8" Button Socket Head Screw, 304SS (18-8SS)
    8-32 Hex Nut, Nylon Insert Self Locking, 304SS (18-8SS)
    #8 Flat Washer, 304SS (18-8SS)

    I used 17 each on my scoop, starting 3/4" from the front and spaced 3-3/8" apart.
    The odd screw is in the center rear of the scoop.

    Hope that helps!

    BTW Breeze can supply if you'd rather not buy packs of 50 or 100 peices from McMaster.
    Mark,

    Thanks for the info.! I'll take a set. Do you have a part number on your website? Also, still very interested in the SS roll bars if a set can be shipped soon. If not, I'll finish my car using the FF bars.

    Thanks,
    Dave
    My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
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  4. #4
    Not a waxer Jeff Kleiner's Avatar
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    Quote Originally Posted by Papa View Post
    I want to use SS screws for the hood scoop. What is the recommended size and what washers work best?
    Dave,
    If you intend to have stripes and have not already cut the scoop hole or drilled the hood PLEASE do not. It can lead to all kinds of trouble because what you think is the center probably is not.

    Jeff

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  6. #5
    Papa's Avatar
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    Quote Originally Posted by Jeff Kleiner View Post
    Dave,
    If you intend to have stripes and have not already cut the scoop hole or drilled the hood PLEASE do not. It can lead to all kinds of trouble because what you think is the center probably is not.

    Jeff
    Thank you, Jeff. I really didn't want to make that cut anyway! I'll leave it in your skilled hands, sir.

    Dave
    Last edited by Papa; 10-28-2018 at 04:37 PM.
    My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
    (Most viewed Roadster build thread on this forum!)

    Delivered: 6/17/2017
    First Start: 12/30/2017
    Completed: 12/7/2019
    Legal: 1/30/2020

    Member of the Mile-Hi Cobra Club
    Dave's Cobra YouTube Channel: https://www.youtube.com/channel/UCbk...npK1UZHj4R-bYQ
    Agora 1:8 Scale Cobra Build: https://thefactoryfiveforum.com/show...l-Build-Thread

  7. #6

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    Papa - it's not a Breeze kit so just order any item online and note in comments just hood scoop fasteners wanted. (or call)
    How about $6 plus postage?

    Now it is a Breeze kit and whey I really added up the cost I need to charge more.
    Still a huge time saver and the button heads give a nice precision race look.
    https://www.breezeautomotive.com/?s=...t_type=product
    Last edited by Mark Reynolds; 01-16-2019 at 04:46 PM.
    www.breezeautomotive.com 2005 FFR Mk3 Roadster, 302/340hp, MassFlo EFI, Breeze Pulleys, T5, Aluminum Flywheel, 3-link rear with Torsen Diff and 3.27:1 gears, Power Steering, Breeze Front Sway Bar, SN-95 Spindles with outboard SAI Mod, Breeze Battery Mount, QA1 Externally Adjustable Shocks, Quick Release Steering Wheel, Vintage Race seats, GM Arctic White, Sky Blue Scoop, Hidden Hinges, Billet Aluminum Side-view Mirrors, 2,183lbs wet. 1967 Mustang Fastback, Dark Moss Green, black interior, '67 14" styled steel wheels, 2000 Explorer 302 w 5.0 Cam, Quickfuel 450 CFM, 289 Hi-Po Dual exhaust, C4, lowering springs w Shelby drop.

  8. #7
    Papa's Avatar
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    Quote Originally Posted by Mark Reynolds View Post
    Papa - it's not a Breeze kit so just order any item online and note in comments just hood scoop fasteners wanted. (or call)
    How about $6 plus postage?
    Perfect. I'll give you a call.

    Dave
    My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
    (Most viewed Roadster build thread on this forum!)

    Delivered: 6/17/2017
    First Start: 12/30/2017
    Completed: 12/7/2019
    Legal: 1/30/2020

    Member of the Mile-Hi Cobra Club
    Dave's Cobra YouTube Channel: https://www.youtube.com/channel/UCbk...npK1UZHj4R-bYQ
    Agora 1:8 Scale Cobra Build: https://thefactoryfiveforum.com/show...l-Build-Thread

  9. #8
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    Quote Originally Posted by Jeff Kleiner View Post
    Dave,
    If you intend to have stripes and have not already cut the scoop hole or drilled the hood PLEASE do not. It can lead to all kinds of trouble because what you think is the center probably is not.

    Jeff
    Jeff,

    Sent you a PM.

    Jay
    Mk4 Roadster 20th Anniversary #8658. 04 of 20. 3.31 IRS.
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  10. #9
    Senior Member Scott Zackowski's Avatar
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    Some folks use 10-32 Button Heads.

  11. #10
    Senior Member Scott Zackowski's Avatar
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    Quote Originally Posted by Jeff Kleiner View Post
    Dave,
    If you intend to have stripes and have not already cut the scoop hole or drilled the hood PLEASE do not. It can lead to all kinds of trouble because what you think is the center probably is not.

    Jeff
    Seems like it would be okay to cut the hole in the hood using Jeff's technique of using the underside of the hood indents and using his measurements.

    Borders 1 1/2 inches Rear and Sides, and 3 inches Front in from the under hood indent. And 3 1/2 inch hole saw for each of the corners.

    Now I can see drilling the Hood Scoop holes into the hood being a problem for the stripe painter.

    Which brings me to my question.

    Jeff, how do you determine Hood Scoop placement?


    I would think you would have to drill the holes before painting body color or strips.

    Scott

  12. #11
    Senior Member edwardb's Avatar
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    I use 10-32 SS button heads for the hood scoop. But the 8-32's would be OK too.

    Since cutting the hood scoop was also mentioned, here's my suggestion. Mount the hood scoop first. Then use the mounting holes to exactly locate the cutout. There have been several posts about builds that cut the hole first and then found it was incorrect in some way. Not good. Obviously getting the hood scoop in the proper location, centered, etc. is very important. Especially if adding stripes. As Jeff said, leaving to him (or other painters) may be the best choice. Just depends on your situation and plan.
    Build 1: Mk3 Roadster #5125. Sold 11/08/2014. Build 2: Mk4 Roadster #7750. Sold 04/10/2017. Build Thread
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  13. #12

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    8-32 button heads are already .308" OD so for me no need to go any larger.
    A 1/8" rivet head is about .25"
    www.breezeautomotive.com 2005 FFR Mk3 Roadster, 302/340hp, MassFlo EFI, Breeze Pulleys, T5, Aluminum Flywheel, 3-link rear with Torsen Diff and 3.27:1 gears, Power Steering, Breeze Front Sway Bar, SN-95 Spindles with outboard SAI Mod, Breeze Battery Mount, QA1 Externally Adjustable Shocks, Quick Release Steering Wheel, Vintage Race seats, GM Arctic White, Sky Blue Scoop, Hidden Hinges, Billet Aluminum Side-view Mirrors, 2,183lbs wet. 1967 Mustang Fastback, Dark Moss Green, black interior, '67 14" styled steel wheels, 2000 Explorer 302 w 5.0 Cam, Quickfuel 450 CFM, 289 Hi-Po Dual exhaust, C4, lowering springs w Shelby drop.

  14. #13
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    If you want I have a half box of the button heads I used on my scoop 8-32 and I polished the heads on the buffer so they look like chrome. I don’t have extra acorn nuts but if you want the screws let me know.
    Mk4, Moser M88 rear end, Eaton truetrak, Craft Racing 461 Windsor, MMR pro trans, Glenn’s 1,000 hp cobra fuel system and lots of other parts.

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