Shackleford

iTrader: (12)

It's probably not even adequately filled.

KillerTA

iTrader: (3)

I'd say it could be a bad head gasket.

Shackleford

iTrader: (12)

lol. Probably radiator cap.

KillerTA

iTrader: (3)

I have a bad headgasket on my 96 olds and coolant comes out of the reservoir but it's not the same setup as the LT1 setup.

It's because of exhaust gasses leaking into the cooling system and building up pressure which pushes coolant out.

Shackleford

iTrader: (12)

Could be a bad thermostat? I'll try another radiator cap.

KillerTA

iTrader: (3)

Could be a thermostat if it's overheating which could cause coolant loss, but you'd obviously know if it was overheating.

It's not coming out of the radiator cap? It's coming out of the reservoir?

Shackleford

iTrader: (12)

Well, there's not adequate coolant in the system anyway.

LT1MAN

iTrader: (6)

mine did that, after i got a new radiator and flushed the whole system and got all the bubbles out it quit.

FlamingChicken

iTrader: (2)

mine would do that in the summer or if it got over 210 and was shut off. the coolant would start boiling after the car was shut off, im assuming from heat soak. i would flush the old coolant out and make sure you get all the air out of the lines then go from there.