L92 crankshaft

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Feb 9, 2007 | 11:58 PM

Tom@SpeedInc

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From: Chicago

L92 crankshaft

Anyone know the difference between

GEN III 5.3-5.7-6.0 crankshaft part number 12559354

L92 6.2 crankshaft part number 12584997

Other then the reluctor ring are these the same crankshafts?

ty

Feb 10, 2007 | 01:25 AM

DoesSpeedTurnUon

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From: Little Elm, TX

I was told they're all 3.622 stroke. different bore sizes for different motors.

Feb 10, 2007 | 09:06 AM

Karlo

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I was wondering the same thing? The Price is hard to beat also?

12584997 GM Performance Crankshaft Assembly 2007 L92 $220.97

Feb 10, 2007 | 09:26 AM

bg-sdpc

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Quote:

Originally Posted by Fraser@speedinc

Anyone know the difference between

GEN III 5.3-5.7-6.0 crankshaft part number 12559354

L92 6.2 crankshaft part number 12584997

Other then the reluctor ring are these the same crankshafts?

ty

The only differences are the reluctor ring and that they are balanced differently because they have different bob weights. If you are building a custom engine with one of these cranks it will not matter which one you use because it will be rebalanced to the new parts. Just make sure you have one with the correct reluctor.

Feb 10, 2007 | 11:31 AM

WizeAss

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I thought the L92 engine had a forged crank??

Feb 10, 2007 | 12:15 PM

bg-sdpc

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Quote:

Originally Posted by Forteen3GT

I thought the L92 engine had a forged crank??

The original press release that came out said they were forged but they are not. It is a standard cast crank.

Feb 10, 2007 | 03:47 PM

99Fbody99

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Beside the balance weights the truck crankshafts are not gun drilled for weight reduction.

Dave

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Feb 11, 2007 | 06:54 PM

big b

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From: Social Circle, GA

So what relucter ring does the l92 crank come with? Looking at possibly building a mild street engine with this crank. And the price is almost too good to pass up. Is it the same as any other gen3 truck engine? Are there any reasons not to use this crank? "hp/tq limits"...