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4 6 connecting rods question

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Old Mar 19, 2022 | 04:52 PM
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jeffcornett
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4 6 connecting rods question

I'm in middle of rebuilding a 1998 4.6..I've been a mechanic for over 40 years,buy I haven't ran across this .after tearing the engine down I noticed it has 4 connecting rods of one kind and 4 of another..this engine has never been taken apart..as I didn't mark them when I took them out..I don't know if they were arranged a certain way or what?.has anyone seen or heard of this?.4 are narrow rounded,and machined well,the others are wider,beefier,and rougher cast..I'm posting a couple pics showing the difference..if anyone knows anything, I'd appreciate it..thank you very much


 
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Old Apr 17, 2022 | 03:03 AM
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cleatus12r
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The pistons are also different.

No real answer for you, but it is cool to see different stuff.
 
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