Thread: What pistons are in my 390
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Old 06-07-2020, 01:49 PM
74Torino 74Torino is offline
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Another source says that all 1970 2v 390s are 9.5 ratios, and all 1971 2v 390s are 8.6 ratios. By that info, the first picture is a 9.5 ratio and the second is actually and 8.6 ratio. The source was erareplicas.com. Does that seem right? By how these look it seems the opposite
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