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Engine build question

Old Mar 25, 2004 | 05:55 PM
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Default Engine build question

I am getting a somewhat forged bottom end built for my car now. I have the pistons and rings and I still need the main and rod bearings and the rods themselves. I am going to use the stock crank with this project and want to kep it as a stock displacement motor.
I have the Diamond pistons size 3.905 and JE rings already
What size rods do I need and does eagle make a set to fit my needs? Im somewhat on a budget here. Also, What bearings should I get?
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Old Mar 25, 2004 | 06:12 PM
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If you already have the pistons, you need to find out what lenght rod they were made for. They change the pin placement depending on the rods. You cant use a pistons made for a 6.125 rod on a 6.100 rod and vise versa.
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Old Mar 25, 2004 | 06:13 PM
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What is the part number of your pistons? If you have a catalog handy you can look up the part number and see what rod they were built for. I have a catalog right here if you can post your part# I can tell you the rod to use.
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Old Mar 26, 2004 | 09:48 AM
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the part # is a 14965...Thanks for the help guys
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Old Mar 26, 2004 | 10:07 AM
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I just talked to Diamond and they are telling me its a custom piston and there in no way of telling what rod will be used for them. Does nayone know what the stock rod lenght is?
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Old Mar 26, 2004 | 10:16 AM
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6.10" if I remember correctly. It is actually a hair under that, but for your purposes it should be fine.

3.898" bore
3.622" stroke
6.10" rod
deck averages out about -.005"
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Old Mar 26, 2004 | 10:23 AM
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Originally Posted by DenzSS
6.10" if I remember correctly. It is actually a hair under that, but for your purposes it should be fine.

3.898" bore
3.622" stroke
6.10" rod
deck averages out about -.005"


So..6.10 is the stock rod size or what the pistons I have call for?
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Old Mar 26, 2004 | 10:45 AM
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Stock rod size.
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Old Mar 26, 2004 | 02:52 PM
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Hugger SS
Check your PM's, you have an 11502 that was made as a custom before it was a shelf part number for Diamond.
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Old Mar 27, 2004 | 01:17 AM
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Ill call you tomorrow Nick..Thanks for the help
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