Got a marine block for parts on weekend. Was told it was "blow'd up good" and it is... thoughts on if this could be sleeved? It is an Fa block 455 and they don't make em' any more. I am not throwing it out but I am also doubtful on her. That is pretty good damage...

The majority of structure there...

Was told this could not be sleeved and looks like #3 damaged as well

#3,5 & 7 same engine

#2,4,6, & 8 other angle

#2,4,6 & 8 look good

 

I sleeved a 455 that had a hole in it form freezing, no problem, but if you need 3 holes sleeved may be more than you want to spend? Like you said, they are not making them any more.

 

I had a 454 BBC and sleeved to a 396 bore to assist in strength. After about 3 years of racing it broke and looked like your 1 cylinder. Because of all the money spent on block prep for class racing I wanted to fix it. Engine shop said no as without any support on the back side of sleeve then it will never stay round. Maybe sleeve and fill with concrete, but then limited street use.

 

The later 455's had less meat for an overbore... .060 over is common but not a very thick sleeve without support. Even .125 on the older blocks were pushing it in my opinion for an overbore. Still not a very thick piece of metal without support. I saw #3 took damage as well after looking at the pictures... got a box full of pieces. Maybe they are all there and I can puzzle it together... there is something you can put in the block that essentially siameses the block which makes cooling an issue. Just can't remember the name. Mentioned in Mondello book...

 

If that was going in a Hispano-Suiza restoration, maybe, but for a commonly available block I can’t see any sense in it.

—

 

Anything can be repaired if you are willing to pay the price. #3 looks like it has a crack that comes up to the deck surface ? What does The one with the big hole look like at the bottom ? Just curious more than anything If you brought it to me i would tell you no

 

Yeah, the more I look the worse it is. Possible to sleeve and then do a block filler to harden it up. But then not streetable. Hardblok or epoxy... I'll advertise the block and maybe a racer can get some use out of it.

 

Just buy this one and call it done

https://boston.craigslist.org/bmw/pt...334433580.html

 

The support for a sleeve in the cyl with the big hole has been compromised, get another block.

 

Anything can be fixed, the question is why would you want to fix it, virgin 455 blocks are available. Now if you were to fix it a Darton sleve will do the job, much stronger than the original cast iron, and much harder to machine.