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Discussion Starter #1
I've been searching on here and can't seem to get a firm handle on all the different combo's we have.
And GOOOGLE sucks by the way keep getting wikipedia BS.
I would like to get a idea on the different size cranks there are. I'm a newbie to these newer Mopar engines and don't have any idea and can't seem to find the info anywhere.
Also what would be recommended for bore.

I thought this would be helpfull info for anyone wanting to do a engine build like myself. Thanks guys:thumbsup:
 

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just buy a BES motor and be done with it forever
 

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oh yea and a Kenne bell
 

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Discussion Starter #4
They are on the short list for sure. Just want info on what stroke if any might just stay at 6.1. A list of what's out there is what I'm hoping for.
As for KB Jim needs to do some PR first.
 

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All info I am posting refers to the 6.1 block and not the 5.7.

Available cranks
OEM: 3.579"
Scat: 3.795"
Manley: 4.05"
Compstar: 4.05"
K-1: 4.08"
K-1: 4.25"

Available Bore sizes
OEM: 4.055"
Anything between 4.055" and 4.09"
We use 4.06" as it ensures that the 4.055" bore is completely cleaned up and straight. If the block is scratched, sometimes we use a 4.08" bore if necessary but we never use the 4.09" bore.


PWR 6.1: 3.579" stroke x 4.06" bore
Mopar 392: 3.795" stroke x 4.055" bore
PWR 393: 3.795" stroke x 4.06" bore
PWR 419: 4.05" stroke x 4.06" bore
PWR 423: 4.08" stroke x 4.06" bore
PWR 426: 4.08" stroke x 4.08" bore
Indy 426: 4.05" stroke x 4.09" bore
Arrington 440: 4.25" stroke x 4.065" bore
PWR 440: 4.08" stroke x 4.145" bore (sleeved iron block)
 

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What is the stock 6.1 cylinder thickness we can apply to the bore sizes so we can get an idea of where you net out?
 

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Just curious about the Mopar 392. Is the one listed the 2011 or a crate motor?
I thought they new one was going with a bigger bore and shorter stroke 4.09x3.72.

Great info. I have been doing the math in my head, but I don't know the chamber displacement, I was guessing it is about .75ci or so.

http://www.media.chrysler.com/dcxms/assets/specs/2011_Challenger392_Specifications.pdf
Ah, you missed a key point in my post. All of those bore/stroke combos are with the 6.1l block. The new 392 is using the new 6.4l block, but you are correct on the bore/stroke of it.
 
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