Re: cast crank big blocks

[neal zimmerman <neal.zimmerman@xxxxxxxxx>]

well according to the numbers even though it is a 1977 engine it came with a forged crank.  The charts at 440 source say that blocks 4006630 were Industrial/HD trucks.. This explains why the motor has a forged type looking balancer and not the strange bullet nose ones I have seen, or the type with a "wobble" in it

   I did not know this, I thought all the 440s past about 73 were cast

   Neal

On Sun, Aug 6, 2023 at 11:13 AM 62-65-mail-list-club-Gary-H <62-65-mail-list-club@xxxxxxxxxxx> wrote:

Glad to hear you are making progress with the 1965 Coronet and condolences to your machinist, RIP.

That is a good question and it is confusing: 440 source has a comparison of the at least 17 different  harmonic balancers that Mopar used on the big block engines that may help.

https://www.440source.com/dampers.htm

Thanks,
Gary H.

>  -------Original Message-------
> 
>  I am desperately trying to get my 65 coronet back on the road. I am up
>  the creek since my machinist died suddenly. I have found some running
>  low mileage motorhome 440s in the 400 dollar range and am thinking,
>  "well maybe i could do that for a short term solution" .
>  One thing I don't understand is that I always thought all cast crank
>  440s had that really thick , yet smaller diameter, harmonic balancer.
>  But I have found a couple that appear to have the thinner balancer?
>  What gives??
>  Neal ZImmerman --

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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!
 
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