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Plumbing LS1 for rear radiator?

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Old May 11, 2008 | 04:13 PM
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FridgeFreezer's Avatar
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Question Plumbing LS1 for rear radiator?

Morning all, I'm hoping you can help us out here. We've got an LS1 from a GTO going into a, err, thing:

Volvo portal axles, 40" tyres, extreme cup holders and heavy duty fluffy dice etc. etc.

Anyway, we're come to plumbing the cooling system in and are trying to work out what to do with the steam pipes from the LS1 heads, header/expansion tank etc.

The car is running a rear rad mounted up high behind the driver, but the coolant pipes from the block will have to sweep down and along the chassis before coming back up to the rad. This makes the steam vent pipes a bit of a problem as they want to go somewhere high so air can rise. Obviously it's going to be reluctant to bleed out against gravity.

Plan A is to have a header tank next to the radiator like a normal car, with a tee into the bottom for the steam pipe vent, which would run separate from the main coolant hoses all the way to the back. Does this sound reasonable/sensible?

We also need to know what size expansion tanks these usually run?

Cheers in advance!
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Old May 12, 2008 | 07:58 AM
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bluehawk2's Avatar
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From: Tupelo, MS
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I don't know the answer to your question, but you may have more luck putting this in the Conversions and Hybrids section.
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