Author Topic: Can I remove and replace my 340 crankshaft without pulling the motor?  (Read 747 times)

Offline 72CustomCuda

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Subject says it all...anyone done it that way?




Offline Chryco Psycho

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Re: Can I remove and replace my 340 crankshaft without pulling the motor?
« Reply #1 on: November 03, 2012 - 08:54:08 PM »
I suppose it could be done , the big problem is getting to all the rod caps & getting them out of the way ., not so bad coming out but going back in would be very difficult , you would have to hold a 75 lb crank up while positioning the rods so the crank could be held up with the caps . It would be easier if the heads were off so the pistons could be removed & then re-installed after the crank is in place .

Challenger - You`ll wish You Hadn`t

Offline Challenger6pak

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Re: Can I remove and replace my 340 crankshaft without pulling the motor?
« Reply #2 on: November 03, 2012 - 09:32:24 PM »
yes.  It can be done.  I have done it, when I was young and crazy.  Trust me, it is far better to pull the motor and replace the crank on a engine stand.
1969 Sport Satellite H code convertible, 1970 Cuda 440+6, 1970 Challenger R/T 440+6, 1970 Challenger 383 R/T auto, 1970 Challenger R/T 383 4 speed,1971 Challenger convertible.

Offline vinb

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Re: Can I remove and replace my 340 crankshaft without pulling the motor?
« Reply #3 on: November 04, 2012 - 06:37:20 PM »
Pull the engine out,  1 to 1 1/2 hrs and it could be on the engine stand.

You don't what to do bottom end work on your back,  you will be cursing up a storm..

That way you can clean and paint it too...