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MattsY
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 82,
Visits: 3.6K
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No, no rebalance. Minimal material removal, but necessary material removal!
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Ted
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Group: Administrators
Last Active: 12 hours ago
Posts: 7.4K,
Visits: 205.0K
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Machining the OD of the rear oil slinger by itself will not necessitate any additional rebalancing of the crankshaft. Changing the rods and/or pistons where the weight of those is different from stock does require the crankshaft to be rebalanced.
  Lorena, Texas (South of Waco)
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30 coupe
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Group: Forum Members
Last Active: Last Month
Posts: 130,
Visits: 3.4K
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Did you rebalance the crank, or do you think not enough taken off to make a difference?
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blocky
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Group: Forum Members
Last Active: Last Year
Posts: 127,
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that is very interesting . thumbs up
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MattsY
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 82,
Visits: 3.6K
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Gotcha! Obviously, the grinder didn't do that. Fortunately, I have a lathe large enough and did it myself. Took it down to the diameter of the original and it fit like a glove!  
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Ted
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Group: Administrators
Last Active: 12 hours ago
Posts: 7.4K,
Visits: 205.0K
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The date on your C2AE block is December 11, 1963. The O.D. on the 312 crankshaft slinger is larger than that of the 292 oil slinger. When cutting down the 312 mains down to the 292 size, the O.D. of the oil slinger must also be cut down to the appropriate 292 size.
Lorena, Texas (South of Waco)
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MattsY
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 82,
Visits: 3.6K
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It's a C2AE block, not sure on the date. I do knowthe crank that came out if it did in fact have the slinger, but it's diameter was about .200" smaller than the 312 crank I'm using.  
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Ted
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Group: Administrators
Last Active: 12 hours ago
Posts: 7.4K,
Visits: 205.0K
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What is the casting number and date code on the block? Many of the 1954/1955 blocks were not machined to accommodate the crankshaft oil slingers. Those particular blocks do require crankshafts that do not have crankshaft oil slingers.
Lorena, Texas (South of Waco)
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MattsY
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 82,
Visits: 3.6K
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Fixed it! Couldn't pull images from my phone. Sorry 'bout that!
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MattsY
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Group: Forum Members
Last Active: 4 Years Ago
Posts: 82,
Visits: 3.6K
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The site keeps telling me "cannot load content at the moment"
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