cracked plastic assembly with two hoses connected to it and an aluminum/metal tubing coming from it.
leaking from assembly that looks like a thermostat housing, but i thought on the 1999 z24 thermostat on bottom. it has two hoses connected to it & a metal tubing coming from it it like hard plastic and rubber
follow top radior hose see if it leads to a thermo housing if it dose you may have 2 thermostat,s take top one and replace thermo and gaskrt.
I can't tell from your question where on the engine block you're seeing the hoses and plastic assembly. Make sure this isn't a leak coming from the heater core.
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