Technical How much is enough ( boring)

I don't know much about much… but have you considered sleeving it and running it at a stock bore?

 

That fence poses no threat to the average man with 32" inseam!


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Brent, That is something that I actually looked at. There are a couple of schools of thought on sleeving, I had a couple of machine shops ( there are damn hard to find here in Alabama) that said they would not install eight sleeves as it would distort the block. I personally don't have a clue if that is true or not. The other is cost, sleeves at a minimum of $100 a pop means I would have $800 just in the bare block. Not saying that is not doable all things considered but it ain't cheap, Is it?

 

Speak for yourself, beanpole.

 

Sleeving more than 2 cylinders on the same bank is not a good idea. Since the block is already that large a bore, there is not much metal left to remain once you bore to sleeve them, and you'll likely bore into the water jackets on the cylinders to install sleeves, and that wouldn't be good for that many sleeves.

 

sounds like the story on my 331 hemi
was 'rebuilt' years before I got it but never ran
glad I tore it down cause it was missing the pick up screen on the oil pump
it had been bored and had a fresh crank grind but old cam bearings
and had a new set of forged pistons
luckily it wasn't punched as hard as yours is

as far as sleeves, some folks claim that it ads strength to the block
have you called these folks about the block?

http://www.performancespecialtiesinc.com/contact-us/

he will give you an honest answer

 

There are several good performance and race shops in Huntsville and Birmingham. I worked in a race shop in North Georgia close to you and in my experience, it never strengthens the block by adding sleeves, it removes too much of the parent metal to support the sleeve you install back into it. They can also double check your sonic checking results to see if your in good shape or worse shape than what you're thinking also.

 

here is an interesting discussion on the subject
http://www.boss302.com/smf/index.php?topic=10238.0

http://midwestcylinderhead.com/services.php#block

 

My 324 Olds is running .125" overbore and JE forged 11:1 full skirts on .008" cylinder wall clearance. A bit noisy on initial start-up, so a warm-up is necessary. 93octane. MSD 6a box road test set timing eliminates detonation yet keeps the engine lively. In a 2340# roadster.
As others have said, "run it!"
And I don't torture my cars like I used to.