Thread: Winters Aluminum BB and Alum Heads info please
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Old 10-19-2016, 11:39 PM
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Default Re: Winters Aluminum BB and Alum Heads info please
There have also been to "ribs" added on each side of the valley on the block supossedly for strengthening. Should I have these removed or leave them?


Here are the heads. They are dated 1970 casting number 3946074

Castin number






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