Compression Question????

[Bigshrimpin]

Those bottom two are toast. Pull the heads and take a look at the damage. Scoring is probably minimal at 80psi . . . but do not run that motor anymore . . . don't even turn it over (unless you do it by hand slowly with lots of oil). I bet you have two stuck rings and some nice aluminum paint inside the bottom two with light scoring. If you stop now you can probably get away fixing the motor with a hone and two new pistons. Don't even bother decarbing at this point. Pull the heads and look. If you just have stuck rings and no cylinder wall damage . . . then consider yourself extremely lucky. The nice thing about that motor is that you can pull both pistons out without cracking the block open.