"The primary reason for longevity issues was the oil ring in the wrist pin area. That problem has been addressed by several manufacturers. But, they still push the rings too close to the wrist pin, and have a rod/stroke ratio a little on the nasty side from my understanding The extra cubes you get going to a 347 from a 331 are minor, and not worth the possible reprocussions in my opinion"
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1987 Buick T-type
1998 HD Electra Elide
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