504 Block Repair

1370rod

Well-known Member
This block needed the top deck surfaced along with all 6 counterbores repaired because they were cracked. If you look closely you can see the new insert in the top as it is shiny and under it the old cast is dark. Also the bottom bores got bored out and sleeved as they were eroded and badly pitted. This should make the old block about as good as new. The total bill was not ready when I picked up the block, I will pass that info on when I receive it. I have never had tops repaired before, it will be interesting finding out the total cost. Rod.
a183858.jpg
 
Rod Great looking work on the block. Did you need to line bore the block also? Will you need to use heavier head gaskets to make the difference of metal shaved from the head.
Jerry from Ohio
 
I have fixed a few that way also, but all of these bores were ugly. I did not want to take a chance seeing the block was in the shop anyway. Rod.
 
Jerry thankfully the line bore was OK. The head gasket will remain the same. With the deck surfaced the pistons do get a little closer to the heads, so there is a limit you can remove. This block is still within those specs, we'll be OK. Rod.
 
Rod the inserts are they a factory repair piece or after market standard repair piece that is available only to shops that specialize in Block repair ?

Do you know how they are held in place?

I would assume they were sweated in using locktite
 
I know at one time they where available from CASE, I honestly do not know we're the machine shop gets them. They are a press fit and locktited in. Rod.
 

Rod,

Hub city machine in SD makes repairs for

upper and lower to fit most engines , but not

the thinner deck case blocks.

I planed the deck ,recut the upper bores ,

and installed 2 deck repairs in a 504 for a

1450 B loader. Also made and put in a set in

a 188 ,and a 301 AC engine , bought and put

in a set (lowers) in a german IH (856 I think ).

Used to do a lot of 855 cummins blocks (decks).

george
 

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