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radiator question

Posted: Sun Nov 01, 2009 8:45 pm
by hiluxmad
is there any common issues with running an alloy radiator on a holden v8 engine?
cast heads and alloy radiator?
putting one into my lux and trying to work out which way to go to get the best cooling.

Posted: Sun Nov 01, 2009 9:18 pm
by chimpboy
Set up properly the radiator should have no electrical connection to the body... ie rubber mounting all round, no metal to metal.

If you do this right there's no electrical/corrosion issue.

Just our of curiosity how recent are holden v8s with cast iron heads?

Posted: Mon Nov 02, 2009 7:55 am
by hiluxmad
its a vn injected motor i assume they are still cast then? they are definatley not alloy.
one option is to use the hilux rad and recore it but if i use an alloy version it is bolted to the body so it would have an obvious conection to the body electricly speaking.

Posted: Mon Nov 02, 2009 9:50 am
by chimpboy
hiluxmad wrote:its a vn injected motor i assume they are still cast then? they are definatley not alloy.
No idea, I just don't know those motors and I kind of assumed they would have been alloy for a while.
one option is to use the hilux rad and recore it but if i use an alloy version it is bolted to the body so it would have an obvious conection to the body electricly speaking.
It shouldn't be bolted to the body directly no matter what kind of heads you have... at least that was always my understanding.

Posted: Mon Nov 02, 2009 11:22 am
by hiluxmad
the hilux ones are directly bolted to the rad support.
at least all the ones i have seen are.
never looked under the bonnet of a new one though
might just get the standard one recored.......