04-24-2019, 05:51 PM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
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Did you know . . .
Part of engine design . . . call it the foundation of an engine . . . is the bore and stroke combination. This results in the engine's cubic inch displacement. Engines are also designed to be renewed after extended use. you may have seen numbers like .030 over or .060 over. What this means is that there is enough "meat" in the cylinder bores to enlarge them when rebuilding an engine. Almost all production engines sold during the Muscle Car Era could be over-bored by .060 except one: Ford's 427. Because the engine was designed with large bores (4.23) it can only be over-bored by .030. Greater than that requires the use of sleeves.
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