| windjamer | -- 07-07-2017 @ 11:05 AM |
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When you remove the sleeves from a 1940 V8, what size bore do you end up with?
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| carcrazy | -- 07-07-2017 @ 2:42 PM |
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Assuming you are talking about a 1940 Ford 221 cu in. engine with standard 3 1/16" (3.0625") bore, the bore after you remove the sleeves (which have a wall thickness of 0.040") will be 3.0625 + 0.080" or 3.1425". Oversize pistons were available in a plus 0.083" size for use in an engine which had it's sleeves removed and was honed 0.003" to get a good wear surface.
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| TomO | -- 07-08-2017 @ 8:38 AM |
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Before you buy the pistons, have the machine shop do a sonic test to determine if the walls are thick enough to prevent cracking. Not all 1940 blocks could support the .083 oversize. Tom
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| windjamer | -- 07-10-2017 @ 12:14 PM |
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Thank you Tom
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| migger45 | -- 07-11-2017 @ 1:21 AM |
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Heard about this sonic test before, good tips!
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