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  #16 (permalink)  
Old 01-18-2013, 04:22 PM
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Quote:
Originally Posted by bwomp969 View Post
my engines over bored 0.60"... ...overbore size 0.45" or 0.65" not 0.60"...
Not to nit pick- and I know what you are saying- but for your own benefit, get the decimal places correct. You mean to type 0.060", 0.045", etc.

Quote:
...would work except that the pistons I got are meant for 11:1 c/r and the rings are meant for 10.5 to 1 c/r...
There is- generally speaking- no difference in the rings used between these different those two compression ratios.

Now, there may be a different ring called for if the engine will be run at an exceptionally high rpm (generally thinner), and sometimes they'll be made from a different material (if nitrous or super-/turbocharging is to be used), and there are different ring tensions used for different applications, but generally rings will be the same regardless of the CR, all else being equal.

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  #17 (permalink)  
Old 01-21-2013, 06:21 AM
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.. KB hypereutectic pistons use top rings gaps up to double what used to be recommended, depending on your overall setup/power adders/usage...

.. Pre-sized "drop in" rings can have the gaps filed bigger, if needed... usually, the gap needed is never smaller than what the drop in rings will already have...

Last edited by BuzzLOL; 01-21-2013 at 06:34 AM.
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Old 01-21-2013, 09:45 AM
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sbc 350 piston rings?

What is the part# of the pistons you bought? The only thing that makes a difference is if the piston uses 1/16,1/16,3/16 rings or 5/64,5/64,3/16 rings. Post the part# of the pistons.
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Old 01-21-2013, 09:50 AM
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sbc 350 piston rings?

Man, hope the rest of my day does better than answering this 2009 thread!
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Old 01-21-2013, 10:40 AM
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.. Actually, there is another difference in rings, some are thicker and the grooves in the pistons are deeper for those rings... ran into that problem one day with rings which wouldn't go down into the grooves far enough...
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  #21 (permalink)  
Old 01-21-2013, 04:20 PM
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That and the KB ring gap recommendations are in the link at post #13.

This thread was resurrected by HSDropout, it's not still from '09.
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