383 - 432 Issues

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NC Engine Builder said:
Honestly it's such a non coherent run on sentence I'm not sure what they are trying to say. It almost reads that the flange OD should be 3.43 and if it's not, there is some other bearing
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It is a weird statement but I think as long as the bearing fit in the block correctly, no large thrust flange in a block with small register cutout, your original thought about cutting the slinger itself is correct, as long as everything else about the crankshaft is correct.
 
Dubob said:
If I remember correct the assembled thrust is only a few thousandths. (.002-.007”). You may have put the crank in and measure clearance without the bearing then measure thrust bearing thickness. Usually you have to tap the crank forward to seat the thrust bearings against the block. But I think I’d be more worried about the crack at the bottom of the cylinder in picture 4. If I’m seeing it correctly.
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Looks like a big un
 
Just a quick update on this. He got the modified bearings from 440 source and it didn't make a difference, like I suspected. I ended up cutting the radius off of the back side of the slinger and it seems to be good now. I haven't had time to go and work on it but he set the crank in and it seems to have clearance now.
 
PROSTOCKTOM said:
It's just a .030" over (4.28") bore 383 block with a 3.75" (440 stroke) crankshaft to make a 432" setup. Nothing exotic here.

Tom
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I'm aware of that thanks, I misread a post I thought was stroke but it was bearing o.d lol
 
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