Non Pontiac Motors in Pontiacs includes factory 403,305,350 Chevy, Buick V6,
Also Pontiac Motors in non-Pontiacs!

          
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Old 06-08-2004, 01:55 PM
bandit_fred bandit_fred is offline
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Hey gang,

Why would be the cubic inch and litre size of a 403 bored .40 over? How do you do the math on that? I know a 350 .30 over is a 355 but I don't know how you do the math to get to that.

Thanks in advance for the help!
Fred

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Old 06-08-2004, 01:55 PM
bandit_fred bandit_fred is offline
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Hey gang,

Why would be the cubic inch and litre size of a 403 bored .40 over? How do you do the math on that? I know a 350 .30 over is a 355 but I don't know how you do the math to get to that.

Thanks in advance for the help!
Fred

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Old 06-08-2004, 02:58 PM
Donovan Donovan is offline
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Try this link for an online calculator
http://www.classicalpontiac.com/restoration/cr.html

Here-
http://www.bgsoflex.com/displacement.html

Or here half way down-
http://www.ondoperformance.com/calculators.html

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Old 06-24-2004, 01:08 AM
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Colin Colin is offline
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Or if you want to figure it on a regular calculator.......
Number of cylinders X .7854 X bore X bore X stroke = cubic inches.

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