Sleeve 348 block

[cruzin]

Hi

A guy called me and was thinking buying a 348 block from another guy.
The block was sleeved in one hole.
They have put the sleeve in just in the cylinder, not all the way up to the decksurface.
The engine has run some years after this.
What do you think? I would have the sleeve all the way up to the deck so the head secure it.

 

[Don Jacks]

On a mild,near stock build Jan,I doubt that it would be any trouble.I wouldn't want it for a high output stroker however.Just my opinion.

 

[bjburnout]

On a mild,near stock build Jan,I doubt that it would be any trouble.I wouldn't want it for a high output stroker however.Just my opinion.

what Don said.................about 10 years ago I had a 348 (280hp) sleeved (5 cylinders) by a competent shop and it is still running fine today........

 

[Phil Reed]

I would be more worried about the sleeve "moving" if it was not pinned at the bottom.

 

[bobs409]

They should have left a step at the bottom when boring for it so the sleeve cannot move. Sounds like that sleeve moved down?

 

[boxerdog]

I think it goes all the way to the top on the "low" side?? If it's stepped or pinned, it should be fine IMO. But we have some experts here, so I'd like to here how they do it in a case like this.

 

[1958 delivery]

Considering all things just look for another, better block

 

[cruzin]

Yea, the guy that has the block now dont know how the work is done.
Its probably okay for s stock engine but it needs a bore and the price is like a unsleeved one if he find it.

Thank for the input.

bjburnout: how was your block sleeved ?

 

[Tom Kochtanek]

I recall years back I had Tony Schaffer of Day Automotive sleeve a 409 truck block, so that would be a similar "eyebrow" situation as a 348 passenger block.

If I remember correctly he had the top of the sleeve at zero deck heighth, pinned at the bottom. I remember him saying something about "grinding out the eyebrow".

Didn't take a picture, so that's from memory...

 

[Phil Reed]

I don't see how the sleeve could be "retained" since the top of the sleeve does not go all the way to the top of the cylinder. Just my 2 cents.

 

[1958 delivery]

I don't see how the sleeve could be "retained" since the top of the sleeve does not go all the way to the top of the cylinder. Just my 2 cents.

Exactly, it has to go all the way to top plus have a step at bottom.

It's a measly 348, buy a different block

 

[427John]

It depends if the cylinder has a step at the bottom to locate it there and the sleeve goes to the top of the cylinder on the low side then it shouldn't move.

 

[Don Jacks]

Well whomever did it,that motor lasted long enough to wear the bores enough to need a rebore,so it can't be all that bad.As to finding another block in Sweden,that could be a rather tall order.

 

[1958 delivery]

Well whomever did it,that motor lasted long enough to wear the bores enough to need a rebore,so it can't be all that bad.As to finding another block in Sweden,that could be a rather tall order.

Sure it did, and it may fail on the first mile after the new build. Again a better block is the safest thing to do.
As far as Sweden, I didn't know that but it still doesn't change my mind. The foreign buyers are here constantly. my Swedish brake customer is here every few months, he's leaving next week and comes back in a couple months so it's not like they have to search in country only.

 

[cruzin]

The guy contacted me and he have found another good std bore block

 

[sycsteve]

You guys think a stroked engine would be bad to have a sleeve? That's what I have and was looking to get done to my block.

 

[BSL409]

You guys think a stroked engine would be bad to have a sleeve? That's what I have and was looking to get done to my block.

As long as you have a shop that knows what they’re doing do it I know of two that were just done

 

[nana1962409]

You will be fine if you take it to a good shop like BSL409 says. There are 4 sleeves in my 348/380 stroker with a 671 and I won’t give it a second thought because the shop that did it knows there stuff!

 

[sycsteve]

You will be fine if you take it to a good shop like BSL409 says. There are 4 sleeves in my 348/380 stroker with a 671 and I won’t give it a second thought because the shop that did it knows there stuff!

I'm in northern Illinois and it seems like good honest machinist are hard to come by these days. None want to deal with this old junk either. It's not the norm easy 90 deg deck stuff either.

 

[1958 delivery]

I'm in northern Illinois and it seems like good honest machinist are hard to come by these days. None want to deal with this old junk either. It's not the norm easy 90 deg deck stuff either.

Sure and those are the guys you definitely don't want touching your engine.