Claening a Tin Sided V8-60

[$um Fun]

I have tin sided flathead with over 40 years of caked on sludge and managed to remove over two coffee cans of sludge and want to get the block cleaned. I have been told that you don't want to hot tank the block with the tin sides and is like putting aluminum or brass in a hot tank.

Any ideas or methods that others have used to clean tin sided blocks would be helpful. This block is really filthy from not changing the oil.

[flatheadmurre]

Spray washer or hot tank with an aluminum safe detergent won´t be a problem...when the detergent get real caustic it becomes an issue with softer metals.

[40 Deluxe]

I thought that the "tin" sides were actually stainless steel?!

[Dak Rat]

Yes, side plates are stainless steel.

[KiWinUS]

I have had several cooked in shake n bake cleaner with no issues

[Pete]

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I have hot tanked several with no problems.

[aussie merc]

if you can soak in diesel leave it in there for a week and it should wash out with soapy water