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Thread: Easy to make fan shroud for 1st gen.

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    VCVC Member Russell's Avatar
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    Easy to make fan shroud for 1st gen.

    More info here on my GMC page.
    https://vintage-vans.forumotion.com/...andivan#270824
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    I will be adding small pieces to fill the gaps on the side when finished with the install.
    Last edited by Russell; 12-14-2020 at 05:26 PM.
    1966 Sportvan Deluxe 230 3 on tree (work in progress) Now 283 small block
    1965 Sportvan Deluxe 250 powerglide (Sold)
    1966 GMC Handibus Custom 350 3 on tree

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    VCVC Member ShawnM's Avatar
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    Angry Shroud vs. belly pan?

    Curious on people's thoughts regarding using a shroud vs. the stock belly pan? It would appear that the shroud would cancel out at least most of the air the belly pan would provide to help cool things. So is it one vs the other? Additional considerations?

    I realize larger engines need more air or something else to cool them. So far I am happy with the Cougar aluminum radiator with my 250 engine and stock belly pan. No over heating challenges even pulling a canned ham camper in the summer.

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    VCVC Member Russell's Avatar
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    I plan on using both when finished. I think the shroud helps to suck the air out of the front of the radiator better using the tunnel effect. Mostly I like the protection it gives while working on the engine. Years ago I had a flex fan throw a blade while working on it, luckily it didn't hit me but I remember a dent in something on the way out. I don't use flex fans anymore, EVER.
    I also have the Couger style radiator in my '66 Chevy with a 350 Smallblock and it stays mostly under 200. I did cut the front of the doghouse for a tunnel.
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    It also has the belly pan.
    1966 Sportvan Deluxe 230 3 on tree (work in progress) Now 283 small block
    1965 Sportvan Deluxe 250 powerglide (Sold)
    1966 GMC Handibus Custom 350 3 on tree

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    VCVC Member ShawnM's Avatar
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    What's on your dog huse?

    Russell, what is it you coated your dog house and wheel wells with? Looks really good and clean.

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    VCVC Member lvjjj's Avatar
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    Since you have a tunnel, not much air coming in or needed from belly pan. Keep it to keep rocks & stuff from kicking up into the radiator. Nice shroud. I just use a small upper shroud made out of heater duct, I figure the sides of the dog house will keep the air going thru the rad. Although with a tunnel, not sure I need a shroud.
    LARRY OF THE PACIFIC NW
    1965, 292, TH350
    purchased Nov. 22, 1970

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    VCVC Member Russell's Avatar
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    Quote Originally Posted by ShawnM View Post
    Russell, what is it you coated your dog house and wheel wells with? Looks really good and clean.
    It is material like they use on speaker boxes, it is a little stretchy and is easy to apply with some spray glue. I also used it on the dash and window frames.
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    1966 Sportvan Deluxe 230 3 on tree (work in progress) Now 283 small block
    1965 Sportvan Deluxe 250 powerglide (Sold)
    1966 GMC Handibus Custom 350 3 on tree

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    VCVC Member ShawnM's Avatar
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    Nice. Looks seamless too. That would be a great way to cover the wheel wells in the back of my van, as they seem to attract scratches! Thanks for posting the pictures

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    Nice fab job on the fan shroud. Just one point though: the shroud should be just long enough to cover half of the fan. That is, the rear half of the fan should not be in the shroud. Air exiting the fan blades should be expelled radially, not axially.

    Love the tunnel and the speaker fuzz too.

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    VCVC Member Russell's Avatar
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    Quote Originally Posted by tinlizard View Post
    Nice fab job on the fan shroud. Just one point though: the shroud should be just long enough to cover half of the fan. That is, the rear half of the fan should not be in the shroud. Air exiting the fan blades should be expelled radially, not axially.

    Love the tunnel and the speaker fuzz too.
    I will be cutting it down some before final install. It is too wide. Using the existing mounting holes and 2 piece design makes it easy to get in and out. I also plan to put side plates over the gaps later.
    1966 Sportvan Deluxe 230 3 on tree (work in progress) Now 283 small block
    1965 Sportvan Deluxe 250 powerglide (Sold)
    1966 GMC Handibus Custom 350 3 on tree

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    VCVC Member Russell's Avatar
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    Quote Originally Posted by ShawnM View Post
    Nice. Looks seamless too. That would be a great way to cover the wheel wells in the back of my van, as they seem to attract scratches! Thanks for posting the pictures
    There are some seams but hard to see if cut and glued properly.
    1966 Sportvan Deluxe 230 3 on tree (work in progress) Now 283 small block
    1965 Sportvan Deluxe 250 powerglide (Sold)
    1966 GMC Handibus Custom 350 3 on tree

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