What is the general opinion of doing a 440 block .060 over?

[mountain33]

Worst thing is you sleeve it. If it sonic tests great roll with it. I’m getting ready for 60 over on my 383 that tested good and core shift was minimal.

At the risk of causing a flurry of responses and I don't know. Is there anything wrong with sleeving a cylinder? I had always thought that was a option

 

[super-bee_ski]

I would have said 0.055" over for 4.375" bore because there is a good selection of pistons and rings in that size, but you said it was already 0.060" over.

Yup...so I might sell it cheap and do the 70 Long Block as my Daily Driver in the 70 Superbee...

 

[super-bee_ski]

I would have said 0.055" over for 4.375" bore because there is a good selection of pistons and rings in that size, but you said it was already 0.060" over.

Yup...so I might sell it cheap and do the 70 Long Block as my Daily Driver in the 70 Superbee...

Only if needed and have it sonic checked to make sure it's thick enough to be safely bored .060.

Yes, thank you Mike...it's a Block I had picked up years ago, already at .060. The guy went bankrupt and divorced, left it at the shop. Im going to do the 70 Longblock I have...I think..

 

[F4R/T]

A sleeve is as good as they guy who does it. There are advantages they say, I had a 340 sleeved and it was great.

 

[#41]

People have been doing that for 60 years.

I have a 60 over 1968 440HP that I picked up as a used short block about 35 years ago. Cost... a whopping $100.

It's still going strong.... hoping to make it 60 years!

 

[j-c-c-62]

JCC ought to be a lawyer. He loves to play counterpoint on just about every issue.
A moderator ought to put "Devil's Advocate" under his name here.

Consider the alternative, we can agree I believe, ignorance is bliss.
So, I will take that as a compliment.
Besides, somebody needs to do it,

or at the least I need to review the flight of Icarus?

 

[moparx]

Consider the alternative, we can agree I believe, ignorance is bliss.
So, I will take that as a compliment.
Besides, somebody needs to do it,

or at the least I need to review the flight of Icarus?

i took the "flight of icarus" a few weeks ago when i fell off the stepladder, reaching for a rotor disc on the shelf.
little did i know there were 2 rotors in that box instead of one !
off balance and the "flying lessons" began !
i ended up in a pile of square and round tubing. lucky i didn't break anything ! [my head cushioned the fall !]...........

 

[super-bee_ski]

A sleeve is as good as they guy who does it. There are advantages they say, I had a 340 sleeved and it was great.

As mentioned, Sleeve a Cylinder..has been perfected for many years, I ALWAYS ask Tech Questions on this Forum as or esteemed members have seen and Done it all. Hell, Race engines have sleeves...and yes, a Good shop has performed many of them is the shop you want.

 

[super-bee_ski]

i took the "flight of icarus" a few weeks ago when i fell off the stepladder, reaching for a rotor disc on the shelf.
little did i know there were 2 rotors in that box instead of one !
off balance and the "flying lessons" began !
i ended up in a pile of square and round tubing. lucky i didn't break anything ! [my head cushioned the fall !]...........

HOLY "Crash" Batman..you are truly lucky...could have punctured a lung, shoulder injury etc...

 

[moparx]

also being looking at closer to 80 than 70, i need to quit doing "stunts" that are supposed to show how "tough" i ain't these days............

 

[dvw]

It's a street motor with cast pistons. Nobody would blink an eye at .030" over with the cylinder walls .015" thinner than stock. At .060" over, the cylinder walls are .030" thinner than when it was standard bore. So why get so excited about .015"?
Doug

 

[super-bee_ski]

Agree 100 percent!