Thread: 400 SBC .060 over
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03-15-2007 10:56 PM #1
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400 SBC .060 over
This may sound slightly dumb lol. But Is a 400 .060 over a 406? what determines how much more cubes it is when bored. thanks
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03-15-2007 11:29 PM #2
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No, a 400 0.060"-over is a 413. A 0.030"-over is a 406 and a 0.040"-over is a 408.
The formula is .7854 times bore times bore times stroke times number of cylinders.
.7854 times 4.185" times 4.185" times 3.750" times 8 equals 413.
Here's a chart from Flatlander that will show pistons available and compression ratios achieved with different combustion chamber volumes.....
http://www.flatlanderracing.com/trwchevy400.htmlLast edited by techinspector1; 03-15-2007 at 11:31 PM.
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