Ok so I windowed my block a few months back and have been hunting for a bare block for some time now, I would like to get one that hasn't been already bored over but seems to be hard to do

Has anyone actually sleeved there 4g63 block? Or know anyone that has? What's the pros and cons of doing this? Price? Would seem cheaper to do over buying a new bare oem block for 1800$

On another note, why haven't any aftermarket manufacturer step up and start producing import cast blocks? Seem for any v8 out there you can buy aftermarket cast iron block.

 

no point in sleeving a block thats 1k whp capable without sleeves. the 4g63 is already cast iron. if you windowed the block it was not the blocks fault it was probably a tuning error.

 

made almost 900 on block unsleeved.

 

No it wasn't tuner error, was my error in over revving the motor, oil pump gave out, **** got hot and boom
I know my block is beyond repair, I'm asking could this be a good alternative if someone had a block that was already .40+ and didn't want to purchase a new block
I know what our blocks are capable of, I'm talking about doing this process over purchase of a new block.

Example, in the next 10 years how hard is it going to be to get a block for our cars?
Especially most of them now have already been bored .20 over.
Are we just going to keep buying new from the dealer? Got to be other alternatives

 

^^ waste of time and money , you can pick-up a good block for cheap and build it for that price of a sleeve. And if your worried do a 2.2 or a 2.3 they make tons of power and tq and last 20,000+ miles making over 700hp.

 

I made 801 on the mustang dyno, I already know what our blocks are capable of. I'm not asking if this will make is stronger/better. I'm asking could the be a alternative for people who have blocks beyond limits and instead of getting another or buying new they sleeve there current one, but while sleeving it does strengthen the block, return it bore to oem spec and has better heat dissipation.

 

If AMS,ETS, CBRD, BR don't even bother with that why would you go and be Indiana jones in the temple of doom

 

Why make a forged crank when the stock one will do? Same principal. Or even that billet block they make for 8k? It's a alternative

Like I said, when the blocks get harder to get are we just gonna buy new every time?

 

If your making north of 800 on a mustang dyno its only a matter of time before the cylinder walls weaken and start to crack. I just recently experienced this on my car which was making well over 800 for a year and a half. I wouldn't waste your time or money sleeving it just half fill the block.

 

It will probably be more expensive to sleep it than to just get a used or new block.

 

Search......I remember reading old threads about sleeping a 4g63 and it doesn't work. I don't remember why but I do remember that it doesn't work.

 

I have sleeved many early 4g63 blocks without issues. melling sleeves are around 30 bucks each. I have not used expensive darton sleeve and dont see the point to it. I have not sleeved all four bores either. but it is a very viable alternative. even more attractive if you sleeve a 4g64 block down to 85.5/86mm

 

It is kind of funny you replied. I was going to tell him to ask you since you have been around I figured with your experience you would know about it.

I know there were extensive threads about it which I believed were unsuccessful but I don't remember why. Try to find the threads, maybe I am wrong but there has to be a reason why you don't hear much about people doing it.

 

How well have the melling sleeves worked? How much HP have you pushed a sleeved block? What's your opinion on sleeving all 4 cylinders?

 

the melling sleeves work great. they are not as thick as the darton sleeves so there will be more meat holding sleeve in place. no problem doing all four. when I got blocks back from machine shop you cant even tell its been done. it should handle the same hp as unsleeved. an aluminum block with cast sleeve doent have any trouble, why would cast block with cast sleeve?

installing darton sleeves would be waaay more labor that installing melling sleeves. the darton sleeves are overlapping at top of bore. so you would need to machine bore and press in one at a time. each proceeding bore would be cutting into the newly pressed in neighboring darton sleeve. VERY time consuming.