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Old 07-07-2004, 09:18 PM
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main/rod bearings:this cant be wright

well guys..ran into yet another sang...heres the story..i got a new forged crank..came w/ clevettie(sp) bearings..they say upper and lower..anyways they have 30 printed under the bearings..when i put the bearings in the bottom of the bloack..they fit but their not even snug..i can mmove them from side to side..this a true 327 blcok..i thought the bearings like snap in their..but i wounder if i put ti back together it will pro just spin a bearing...i cant understand this..please help guys.-chad

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Old 07-07-2004, 09:49 PM
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put a micrometer on the crank, the bearings, and the main with the cap torqued in place. do the math and see what you come up with. barring access to a micrometer, get some plastigage and check it that way. i do not know what size plastigage you need for a chevy, but one of the bowtie bubbas will know.....
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Old 07-07-2004, 11:32 PM
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I am sure you have checked it out but there is two different bearing sizes in 327"s. If you had a medium block and small bearings they would be real sloppy in the block. If that is the case you have other problems as the crank is probably wrong.
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Old 07-08-2004, 06:14 AM
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bearings

If it a 68 or 69 block it's a large journal block. You probably have a small journal crank. what are the numbers on the box the bearings came in????

keith
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Old 07-08-2004, 09:00 PM
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well guys its a 1968 blcok..i found out that the new crank was for a 67 and earlier 327..so that would probable be the pro...i'm saying i got a small journal and need a big journal..thaks for the posts guys-chad
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Old 07-08-2004, 10:19 PM
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I have never dealt with them but I think there is spacers out there to fix your problem. If you can send the crank and bearings back that would be good but if you are stuck with them a new block or spacers would probably fix your problem.
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