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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

adapting a 2-piece RMS crank?

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Old 02-05-2010, 08:10 PM
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Default adapting a 2-piece RMS crank?
looking for information what needs to be done to adapt one to an LT1 block. I've heard its too much hassle, but i would still like to know the dirty details.

-or-

does there exist a 3.25" / 1pc RMS crank that I am overlooking?
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Old 02-05-2010, 08:47 PM
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Out of curiosity, why? If you want to de-stroke you can always use crank/rods from a L99 and make a 327 w/ a stock bore LT1.
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Old 02-05-2010, 08:51 PM
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Originally Posted by SS RRR
Out of curiosity, why? If you want to de-stroke you can always use crank/rods from a L99 and make a 327 w/ a stock bore LT1.
I thought using an L99 crank would make a 302? I have considered that, just not sure i want to go that far with it.
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Old 02-05-2010, 09:09 PM
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Yeah my bad. I thought the L99 was a 3.25 stroke. Don't listen to me.
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Old 02-05-2010, 10:31 PM
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Yes it can be done easily, back in the day the Bowtie blocks were setup for 1pc rms but use an adapter that bolts in place of the factory rear seal housing. So you can use any 2pc rms crank in an LT1 block, the problem is going to be finding a flywheel if your car is a m6. I know Centerforce used to make one because I have one, but I believe it's discontinued.
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Old 02-05-2010, 10:58 PM
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This might work.

http://www.summitracing.com/parts/CT...7&autoview=sku
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Old 02-05-2010, 11:25 PM
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No it won't because you need one with the 2pc crank bolt pattern but the LT1 specific face setup, I beleive the pn was 700100.
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Old 02-06-2010, 12:01 AM
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According to the notes:
Designed to fit with 6-speed transmission out of a 1993-97 Camaro or Firebird.
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Old 02-06-2010, 02:50 AM
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looks like that will work! awesome, thats not as bad as i expected.
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Old 02-06-2010, 03:00 PM
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I'm running a 2 pc RMS crank in my build. You just need an adapter kit. Fairly common.
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Old 02-06-2010, 04:34 PM
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Originally Posted by 94Z28rag
I'm running a 2 pc RMS crank in my build. You just need an adapter kit. Fairly common.
you didnt need a different flywheel?
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Old 02-06-2010, 06:44 PM
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I just checked the Centerforce pn on my flywheel and it's 700107 so the one that Summit has is the one you need.
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Old 02-06-2010, 07:34 PM
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Originally Posted by 97Z28SS
I just checked the Centerforce pn on my flywheel and it's 700107 so the one that Summit has is the one you need.
thank you!
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Old 02-06-2010, 07:55 PM
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whats the point of lowering the cubic inches? higher RPMs?
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Old 02-06-2010, 11:44 PM
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^^ Most likely. Good for turbos.
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Old 02-07-2010, 02:09 AM
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i used the centerforce flywheel for my 2 pc crank....
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Old 02-08-2010, 10:09 AM
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Ram also has a flywheel that will work.
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Old 02-08-2010, 01:36 PM
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Originally Posted by Wicked94Z
i used the centerforce flywheel for my 2 pc crank....
Same here and I have the Canton 2-piece adapter kit for my conversion.
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Old 02-09-2010, 12:28 AM
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my rear main is leaking 2pc are known for this
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