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Generation III Internal Engine
98 crank vs. 99+ crank

Generation III Internal Engine 1997-2006 LS1 | LS6

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98 crank vs. 99+ crank

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Sep 8, 2005 | 10:41 PM

#1

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98 crank vs. 99+ crank

I got a frankenstien motor going together for my 98. I planed on running the 98 crank but with a 99 computer and harness since I have the LS1 edit software for it. I was told today that I would have to change the magnet wheel on the crank to a 99 and later. Is this correct. I have never heard of that.
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Sep 8, 2005 | 11:23 PM

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GM Parts shows all 98-02 F LS1 cranks to be the same # 12559354 and that includes the excitor ring.

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Sep 8, 2005 | 11:27 PM

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Oh Thats Good Cause I Was Doing The Same Thing.

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Sep 8, 2005 | 11:28 PM

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Oh Thats Good Cause I Was Doing The Same Thing.

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Sep 9, 2005 | 12:26 AM

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Quote:

Originally Posted by 2xLS1

GM Parts shows all 98-02 F LS1 cranks to be the same # 12559354 and that includes the excitor ring.

He said I could run a 99+ crank in an early but not vise versa. There was defanately a differance I looked at both side buy side. I assume the 98' part is long ago superceded.

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