I have been reading about cracked heads for 02 and 03 WRX's is incredibly common. I just took my heads off cause I thought I had bad exhaust valves. I took my heads into my mechanic and he said all my valves are good. He ran a compression test @ 60psi and the heads did not leak. He did see some cracks as well.
I replaced my short block when the car had 68k on it, currently my car has 146k on the drive train.
I have been getting mis fire codes for the last 10k miles. Replaced spark plugs, fuel pump, and finnally ran a compression test. 1 cylinder showed 50 lbs, the other 3 cylinders were 145+ lbs.
Question, is it safe to use my current semi cracked heads?