can this block be repaired?

[hwoods]

https://dallas.craigslist.org/mdf/pts/d/1965-ford-fe-427-side-oiler/6607462505.html

ad states has weak spots in the water jackets?

[gt350hr]

   No surprise , it's a marine block because of the brass core plugs not a passenger car block like he "thinks" it is.

[ntheogen]

FWIW, that block has been on there for sale for well over a year and half, if it were a decent deal it would have been gone long ago. Too pricey for the kind of pennies you will have to spend to make it a useable piece.

I'm also almost certain he is the guy who has some nicely dated supposedly undamaged side oiler blocks I talked to a while back.  You can have one for the low, low, blue light special price of 10k for a bare block. I told him I needed his customer list, lol.

[cjshaker]

"I looked on line motor was cast for a Mercury Comet Cyclone"

I had no idea Ford cast specific blocks for specific cars. I wonder what a Galaxie block looks like?

[TomP]

In June of 65 too! I think that was a special Comet that Holman Moody built for future  eBay sales... the one with the Crites hood and other parts unavailable 50 years ago.

[Falcon67]

Maybe he means Cyclone MerCrusier?   

[Heo]

To answer the original question, Yes the block can be welded
Or metall sprayed or pinned or brazed. Now there is bronze wire
for a regular MiG welder, makes less heat than regular welding
for less risk of more cracking of the cast iron
IF its not a saltwater marine block that rusted thin

[TomP]

No telling what it's been through in the past. Many drag or ski boats used car engines cooled by the sea. No heat exchanger. Around here those are mostly Chevy big blocks and I've seen some pretty rusty ones

[KMcCullah]

The ad states he had a machine shop look at it. Maybe he has a sonic map from the machine shop also? Personally, I wouldn't be afraid to weld it, pressure test it and run it. Even though it has brass freeze plugs, most 427 marine blocks I've seen were not side oilers. This one clearly is.

[hwoods]

fill block half way with block filler?

[KMcCullah]

fill block half way with block filler?

 

The cracks in the water jacket look to be near the deck surface. I doubt a half fill would help that situation. Unless a pressure test revealed cracks near the bottom of the water jackets.

Are you considering this block for a street or track only deal? 

[hwoods]

I probably am not interested in this block.  I think an aftermarket block a better option For now still working on the 445 FE.  was just curious if this block could be repaired

Thanks