Help with diagnosis and repair

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Freddie11

Junior Member
Joined
Apr 11, 2024
Posts
1
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Location
SF,CA
First Name
Freddie1
Truck Year
1987
Truck Model
1500
Engine Size
305
Looking for a little help. I'm posting here cause there are some helpful smart people here. If needs to be deleted because it's not chevelle I understand.

87 Chevy truck. 305 Trucks. Sat for 15 years. Has new radiator. New heater core, New hoses.
I've flushed the system out Five or six times. And I still get Grungy Grimy. Dirty water coming out.not rusty color.
It also has Small fizzy Bubbles in my burpping funnel.
Compression Tested engine All cylinders good 180 185 pounds Per cylinder. No signs of water in any cylinder, no smoke out of tail pipe.

I'm thinking headgasket is bad or cracked head or block because of Bubbles? What do thinking?
but why does the water get so Grungy?
No smoke from tailpipe.
I tried to add video but couldn't
 

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