Engine case

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tanick
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Engine case

Post by tanick »

Anyone know what the difference is between a 4R and a 7R case is? Were there any different castings between them?
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veryporky
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Post by veryporky »

The 7R was the ultimate development of the magnesium case. Off the top of the head it carried more strengthening webs internally. After that they went to ali cases.
Keith
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