Thread: [1968] Engine options
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Old 11/07/2019, 03:31 PM   #8
franklinair
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Location: Franklin, NC
Joined: Mar 07
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The increased cubic inches from 289 to 302 is done by increasing the stroke- not the bore.
The block bores are the same in either engine.
Later model small blocks used a heavier weighted harmonic balancer & flywheel/flexplate.
What is the casting number on the block? (Remove the starter to see it.)

Neil
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