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Quest. about eng blocks thru a fire

R

redtom

Well-known Member
A few years ago I got a Farmall C that went through a barn fire. the head was off and in his shop so it survived. I need a block for an A so he said use this block instead. It cooked pretty hot, melted all the pot metal on the engine and the rear rims sagged right down. I never did anyhting with the block just put it in the shed. Now I was thinking about salvaging it for the A. My question is, how hot can the block get before its junk. I figure align boring will be needed and most likely a crank.
 
how's the cam bearings and inserts? if they didnt oooze out from heat it's prob ok...takes alot of heat a long time to penetrate that much iron.
 
Our NAPA machine shop guy used to buy all the blocks he could find like that. No line boring needed unless needed before fire. The intense heat treated the block to the point that you cannot wear it out.
 
wouldnt worry about the block itself but id mic everything before i spent a bunch of money on it just to be safe fire shouldnt have been a whole lot hotter than engine running so strength shouldnt be a problem
 
Have it magna-fluxed at the machine shop to check for cracks. Cheap money spent to find something you might have missed or not.

Peace of mind.....Priceless.....
 
From what i see engines and trannys after a fire are junk I would look elswhere. Its like russian roullete might go forever and or not at all.
 
I used to work in an automotive machine shop that baked engine blocks and heads in an oven to burn off all grease and oil before shot blasting. I'd just perform all the checks one should make, line bore, magnaflux, deck flatness.
 
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