boreing a 5.3 to a 5.7

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03-22-2010, 03:16 PM

#21

Mr. Sandog

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Quote:

Originally Posted by 00ChevyScott

Obviously a 5.3 is a 327.

Actually it's a 325ci.

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03-22-2010, 05:14 PM

#22

Pontiac Derek

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5.3 is 3.779 bore with a 3.622 stroke =325, an easy cid formula is
Bore x Bore x Stroke x .7854 x # of cylinders fwiw

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03-23-2010, 03:29 AM

#23

Blown06

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To the original poster, my bored 5.3 is holding up pretty good. Its been together now for over 2 years boosted and I've not been easy on it. Its been on 22-23 psi of boost now for the last 5 trips to the track.

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