Depending on what needs to be replace.

If top overhaul kit, the part price is RM90-100.
If valve need replacement, 1 nos RM15-20.
Usually engine oil & filter will be change together, add that as well.
Labour charge about RM280-300 (inclusive of valve grinding).

I did a full overhaul for my Sunny at RM1400.

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Added on October 26, 2008, 9:01 pmdid u check whether the water level reduce drastically?
if yes, check radiator & hoses for leakage.
if no, radiator might need servicing + cleaning.
next check if the water's flowing (water pump).

if head gasket 'kong' d or somehow the water get into the combustion chamber, then only u do a top overhaul.

This post has been edited by scorgio: Oct 26 2008, 09:01 PM