What's the cubic inches on a .030 over 289?
 

I tried searching, but came up empty. I figure one of you guys will know. Thanks

Thread title edited for the anal retentive amongst us.
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RE: What the cubic inches on a .30 over 289?
 

have you done this or considering it?

RE: What the cubic inches on a .30 over 289?
 

I just bought a donor car to get the pillars, and it came with a 289 in pretty good shape. I'm thinking about reusing the 289, but it definitely needs a rebuild. I figure it needs a boring, or at least the ridges reemed.
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RE: What the cubic inches on a .30 over 289?
 

ok, i dont profess to be expert, but I was told to avoid overboring 289 any more than absolutely necessary as they are fairly thin walled.

the main problem is that they become harder to cool.

you're lucky if you have found a good 289 to start with. they are rarer than rocking horse poo over here:D

RE: What the cubic inches on a .30 over 289?
 

thats pretty fuggin rare!:D

RE: What the cubic inches on a .30 over 289?
 

I havent heard that Aussie, thanks, I'll keep it in mind. I guess if it can be freshened up and machined to work without overboring it, then theres no need. I was just curious.
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RE: What the cubic inches on a .30 over 289?
 

Plus if you only bore it .10 over, in ten years you can bore it again and still be safe.

RE: What the cubic inches on a .30 over 289?
 

Do the math - 4.030 (the bore) divided by 2 - that number times itself - times pi, 3.1416 - times 2.87 (the stroke) - times 8 (it is an 8 cylinder car, right?) and your answer is -
Remember all that crap they taught you in school - put it to work.

RE: What the cubic inches on a .30 over 289?
 

[sm=outcold.gif]What?

RE: What the cubic inches on a .30 over 289?
 

The volume of a cylinder times eight.

I'm officially old, I'm worried about our youth. :D

BTW, if you look at Jim's formula, you'll see that the displacement is directly proportional to the square of the bore. New displacement = ((new bore^2)/(old bore^2))*original displacement. Keep in mind that your number could be off by 1c.i. due to rounding (hint: a 289 is really a 288.52).