How to clean a block

**luzl78** · #1 09-27-2025, 06:39 PM

I would not shot peen the block.i would power wash it and put it in a barrel and fill it with evaporust and leave it in for a day or two.buy 20-25 gallons and do one side of block and flip the engine and do the other side. Would cost you $500 in chemical but would be clean.

bdk1976 · #2 09-28-2025, 07:46 PM

Quote:

Originally Posted by luzl78

I would not shot peen the block.i would power wash it and put it in a barrel and fill it with evaporust and leave it in for a day or two.buy 20-25 gallons and do one side of block and flip the engine and do the other side. Would cost you $500 in chemical but would be clean.

I'd probably just fill the water jackets with evaporust (or similar) - shouldn't need much. I don't see a speck of rust anywhere else on this block.

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