Engine Block Cleaner

[Kinicki]

I need an efficient way to clean an engine block that has some residual carbon buildup that is hard as a rock, and some left over gasket material that is also very hard.

I have tried carb cleaner, acetone, etc. with a plastic putty knife, but nothing worked.

The block is in the car so I can't hot tank it.

Anyone know of some magical chemical or method to clean this block up?

 

[Bushytails]

Wire brush and a power drill - usually will take off carbon, and if you do it right, will even give a slight new crosshatch to your cylinders.

--Bushytails

 

[Animal]

i always use break clean for everything. Everything else gets muscle grease.