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Lunati 4.125" Crank in a LQ4 Block

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Old 07-09-2002, 01:41 PM
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Default Re: Lunati 4.125" Crank in a LQ4 Block

I am running a 4.125" crank on a 4.030 bore with a 6.2 rod.

Sean
Old 07-09-2002, 02:00 PM
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Default Re: Lunati 4.125" Crank in a LQ4 Block

So you guys had/have no clearance problems with fitting crank in the block?
Old 07-10-2002, 12:00 AM
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Default Lunati 4.125" Crank in a LQ4 Block

Does anyone know if the Lunati 4.125" crank will fix in a LQ4 Block or would the block need extra machining? Also, what size connecting rods would be needed; 6.0" or 6.125"? TIA
Old 07-10-2002, 12:03 AM
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Default Re: Lunati 4.125" Crank in a LQ4 Block

Nope, I ran into none if you use the 6.125" rods you will have to do some machine work to get them to work.

Sean
Old 07-10-2002, 12:23 AM
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Default Re: Lunati 4.125" Crank in a LQ4 Block

I run a offset ground 4.075 stroke Lunati crank in my LQ4 block.
Old 07-10-2002, 12:52 AM
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Default Re: Lunati 4.125" Crank in a LQ4 Block

you run into issues using the 6.125 rod but not the 6.2???? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
me confused!
Old 07-10-2002, 02:03 AM
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Default Re: Lunati 4.125" Crank in a LQ4 Block

With the 6.2 there is less rod angle then with the 6.125, There is a guy in the FI forum building a 4.030x4.125" 422 with 6.125" rods he told me they had to do some machine work to get them to fit.

Sean



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