55 gallon drum
Water
3 cans of lye
1/2 box of Tide laundry detergent
Firewood
Dunk the block and head in the barrel, fill with water, add lye and detergent, fire it up. After about 4-6 hours, pull the parts out and hose them down with the pressure washer. DO NOT put pistons or anything else aluminum in this stuff- - - -you won't see them again!
Jerry