overheat"ed" issues

[mxsx25]

i have a recently rebuilt KAde-t and had a bad thermostat and overheated the hell 0ut of it... removed thermo yesterday to test and drove it around and it was running very cool and doesnt seem to be losing fluid

my concern is that while running and even after its shut off, the radiator hoses upper and lower are both super pressurized... what would the cause of this be? do i have a serious issue? becuase its not overheating and seems to be pulling as hard as ever still so im kinda confused...

also did comp test, and was around 130 on all cylinders

any help is much appreciated, thanks guys

[fliprayzin240sx]

Did you change to lower compression pistons when you rebuilt the engine? 130 is a way low if its still stock KA pistons.

[redline racer510]

you may have a headgasket leak

[jesse_s13]

Did you change to lower compression pistons when you rebuilt the engine? 130 is a way low if its still stock KA pistons.

What he said.


Get the head gasket tester from napa!