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Radiator switch

Discussion in 'The Garage' started by 88subgeorge, Mar 20, 2004.

  1. 88subgeorge

    88subgeorge Registered Member

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    My son crashed my '78 Suburban. I found a good deal on an '88 [same body style].
    Both have 454s.
    The radiator in the '88 is shot. Thr radiator in the '78 is near-new. The '88 has a heater hose fitting on the passenger side tank. The other one does not.

    The '88 has throttle body injection. One heater hose goes to the throttle body & the other to the radiator tank.

    Any idea if the heater hoses can be rerouted with the TBI, to allow use of the earlier radiator?

    Thanks
     
  2. Muddytazz

    Muddytazz 1 ton status

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    I don't see why it wouldn't work. Both are pretty much doing the same thing.
     
  3. 88subgeorge

    88subgeorge Registered Member

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    Agreed.
    I was asking if anyone found room to connect the second heater hose to the TBI manifold. It's significantly different than a carbureted manifold.
     
  4. 4xcrazy

    4xcrazy 3/4 ton status

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    If you don't use the heater hose connection on the radiator, then you simply route the hose to the top of the water pump, there is a plug in it where you can install a fitting to accept a heater hose, then the other hose goes to the intake manifold.
     
  5. Muddytazz

    Muddytazz 1 ton status

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    Little bit off the subject but may be related and may help him. But on my heater hoses, one goes to the rad and the other goes to the intake. Can I take the one off the intake and move it to the water pump instead?
     
  6. 4xcrazy

    4xcrazy 3/4 ton status

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    Yes, if you want to bypass your heater core.
     
  7. 4xcrazy

    4xcrazy 3/4 ton status

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    The intake manifold supplies hot water to the heater core, comes out of the heater core to either the water pump or the radiator. if you want to bypass your heater core you simply run the intake directly to the water pump or directly back to the radiator.
     
  8. Muddytazz

    Muddytazz 1 ton status

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    Well guess that answers that question....don't want to do that.
     
  9. 4xcrazy

    4xcrazy 3/4 ton status

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    Intake to heater core, heater core to water pump/radiator..,

    Simplified?
     

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