What are the con's of rebuilding with just standerd bore pistons n rods and not boring out...

MMMMM none well maybe down time but you get that with any rebuild.

Originally posted by eclipse_99rs
MMMMM none well maybe down time but you get that with any rebuild.

Ummmm how bout no.

You want cylindered bored because you want the most level, perfect cylinder shaped. A block, used over time develops imperfections, and you over bore it, to get rid of those imperfections.

Also, imperfect cylinders, I THINK, results in low compression and blow-by.

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ah thats what I needed to know..what would the imperfections of time cause...and blowby is the answer ....any other con's besides blowby

ehhhhh never mind I was thinking of honing only. You also need to hone it because boring will leave inperfections. :nono

After a while the cylinder will start looking more like an oval than a circle.

Originally posted by eclipse_99rs
After a while the cylinder will start looking more like an oval than a circle.

huh? like said above. you want to bore it. make it perfect. also will set the piston rings better.

It also allows you to properly size the bore for the piston, which you can't do with a worn in bore and a standard bore piston.

If your going to the trouble of pullling the engine and all that work you might as well have a standard over-bore done. You'll be happier in the long run, and much less concerned about blow-by.

yeh if possible try to get overbored pistons. You never know how messed up the cylinder walls were. Because I didin't do it my car sounds like a diesal all the time now. Then again my cylinder walls were never worn out, i just needed to have the head rebuilt.

But also if you really don't want to go overbore. i suggest buying the pistons after you've taken and inspected the block out. That way you can tell for sure.