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Old 04-27-2010, 04:37 PM   #10
aspen7709
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Default Re: 73 Plymouth duster question

The 360 block can be replaced with the new R blocks and quite a few racers are using 318/340 main blocks with a 360 crank. That is legal per NHRA as long as the stroke and cubes are there. With the small journal crank the spinning assembly is a lot lighter.
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