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Thread: bigger radiator?

  1. #1
    Join Date
    Sep 2007
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    Sweden Dalsland
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    6

    Default bigger radiator?

    Hello!
    can i use my gas rad to my 6.2 converson
    GMC 89- sportside

  2. #2
    Join Date
    Aug 2000
    Location
    Riverside, CA USA
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    686

    Default

    Is the gas engine the 350 or 454? The 454 radiator might be similar to the 6.2, but the 350 is probably to small.
    83 C10 Suburban, Silverado, 6.2, 700R4, 3.73, 31-10.50R15
    82 C30 Crew Cab dually, 6.2, Banks, Th400, 4.10, Gear Vendors, 235-85R16
    83 C20 Suburban, Sierra Classic, 6.2, 700R4, 4.10, custom paint, 285-50R20
    95 Yukon, 6.5, 4L80E, 3.42, 265-50R20
    73 GMC Astro 95, 8V71, 10 speed Roadranger, 110" WB, 6 each 11R24.5

  3. #3
    Join Date
    Sep 2007
    Location
    Sweden Dalsland
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    6

    Default

    It´s for the 350
    but i dont understand this i thougt gas engines produced more heat
    Thank you for your reply

  4. #4
    Join Date
    Mar 2000
    Location
    South Central Pennsylvania, USA
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    2,697

    Default

    Quote Originally Posted by conan View Post
    but i dont understand this i thougt gas engines produced more heat
    Nope!

    Just to start out, 6.5L is about 396 cubic inches, so about 13% greater than your 350. Also depends on how hard you work it.
    '94 GMC 6.5TD K1500 4L80E 2-Door Yukon SLE 221K
    '93 Chevrolet 6.5TD K2500HD NV4500 Std. Cab Longbed 187K
    '85 Toyota 22R RN60 4x4 Std. Cab Shortbed 178K (Currently retired for rebuild)
    Diesel Page Member #2423

  5. #5
    Join Date
    Aug 2000
    Location
    Riverside, CA USA
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    686

    Default

    You will want to get a 6.2 radiator. The higher compression ratios of the diesels generate both more power and more heat.
    83 C10 Suburban, Silverado, 6.2, 700R4, 3.73, 31-10.50R15
    82 C30 Crew Cab dually, 6.2, Banks, Th400, 4.10, Gear Vendors, 235-85R16
    83 C20 Suburban, Sierra Classic, 6.2, 700R4, 4.10, custom paint, 285-50R20
    95 Yukon, 6.5, 4L80E, 3.42, 265-50R20
    73 GMC Astro 95, 8V71, 10 speed Roadranger, 110" WB, 6 each 11R24.5

  6. #6
    Join Date
    Sep 2007
    Location
    Sweden Dalsland
    Posts
    6

    Default

    Is the banks turbo watercooled?
    do you think i shuld bye and install banks before i install the engine in the truck or is it best to see so the engine vorks well in the truck?
    sorry for my bad english
    Chevy C2500 95- 6,5 TD

  7. #7
    Join Date
    Apr 2001
    Location
    CA
    Posts
    13,579

    Arrow

    Welcome to the Forums, Conan!

    You are getting sound advice here. A small block radiator will be a liability.

    The Banks turbo is not water cooled.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  8. #8
    Join Date
    Sep 2003
    Location
    Feeniks, Aridzona
    Posts
    1,114

    Default

    Due to the design of the front clip of my Waggy, I was limited to the size that came with the 360 gasser. I installed a 2 core aluminum replacement and have not had any cooling issues. BUT...if I had the room I definitely would have installed something bigger. Since a diesel was an option in your chassis, I would install the bigger radiator.

    No one ever regretted installing a bigger radiator.
    1987 Jeep Grand Wagoneer...new 6.5 in process...diamond block, 18:1's, other goodies...


  9. #9
    Join Date
    Aug 2000
    Location
    Riverside, CA USA
    Posts
    686

    Default

    The Banks kit can be installed with the engine in place. Right side exhaust manifold has to be removed and replaced with the Banks unit. The Banks kit would be easier with the engine out of the truck, but either option will work.
    83 C10 Suburban, Silverado, 6.2, 700R4, 3.73, 31-10.50R15
    82 C30 Crew Cab dually, 6.2, Banks, Th400, 4.10, Gear Vendors, 235-85R16
    83 C20 Suburban, Sierra Classic, 6.2, 700R4, 4.10, custom paint, 285-50R20
    95 Yukon, 6.5, 4L80E, 3.42, 265-50R20
    73 GMC Astro 95, 8V71, 10 speed Roadranger, 110" WB, 6 each 11R24.5

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