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Mid 70's Six Pack Bottom End?? Steel Or Cast Crank?

Posted By: SuperStockWagon

Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 06:47 AM

Have had this 440 sitting in the back corner of my shop for years..cast 1975. Any specific application? Cop car? Pulled out of a 2wd 77-78 truck, but don't believe it to be original.

Attached picture 20180215_161402_resized.jpg
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Posted By: 6bblgt

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 07:09 AM

per the top pad work is there a partial VIN stamping on the pan rail?

6T440 E
9 5


6 = 1976 model year
T = Trenton MI engine assembly plant
440 = cu.in.
E = cast crank

9 5 = Friday 9/5/75 engine assembly date
Posted By: SuperStockWagon

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 07:15 AM

Thanks, tried to read the partial vin and was unable to..will try again tomorrow.
Posted By: 6bblgt

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 07:17 AM

if it has a VIN it was a passenger car engine
Posted By: cudaman1969

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 05:53 PM

wasnt E 1970 year, it is externally balanced looking at the balancer
Posted By: DaytonaTurbo

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 06:09 PM

The balancer should be stamped saying cast crank only.
Posted By: B5 Bee

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 06:36 PM

Originally Posted By cudaman1969
wasnt E 1970 year, it is externally balanced looking at the balancer


E440 is 1970
As Dan posted, 440E is cast crank
Posted By: SuperStockWagon

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 07:05 PM

Originally Posted By 6bblgt
if it has a VIN it was a passenger car engine


Thanks Dan!



Attached picture 440 Engine Vin Stamp.jpg
Posted By: Butterscotch71

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 07:20 PM

So how is this a six pack bottom end?
Posted By: B5 Bee

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 08:12 PM

Originally Posted By Butterscotch71
So how is this a six pack bottom end?


If it has the heavy 906/908 connecting rods, some may consider it to be a six pack bottom end.
Posted By: 6bblgt

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 09:27 PM

the OP appears to be asking the question .....

is this a mid-'70s Six Pack Bottom End?? * probably NO heavy rods
does this have a Steel or Cast Crank? * CAST crank

* at least when originally assembled

6D162051 = C-body from Belvidere, IL
Posted By: Pacnorthcuda

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 09:47 PM

A 76 block, cast crank and we're talking about this maybe being a six pack bottom end?

Is this still Moparts or has the site been hacked?
Posted By: SuperStockWagon

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 10:34 PM

Originally Posted By Pacnorthcuda
A 76 block, cast crank and we're talking about this maybe being a six pack bottom end?

Is this still Moparts or has the site been hacked?


Ok,excuse me..heavy rods/big balancer..had always heard of it referred to as a 6 pack rotating assembly..It is definitely heavier appearing (balancer)than the std cast crank 440 of the era that I've dealt with.
Posted By: cudaman1969

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/16/18 11:25 PM

Balancer is what's weird, I have a 74 or 75 motor home block still together with a steel crank and the big rods, But a thinner beveled edge balancer that doesn't have the balance ring. I have a police 77 cast crank balancer, but I don't think I looks like the one you have either, I'll look tonite to double check. Only thing for sure is its a c-body block, not what's inside.
I checked, neither one I have look like yours.
Posted By: 62maxwgn

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/17/18 05:15 AM

Originally Posted By B5 Bee
Originally Posted By cudaman1969
wasnt E 1970 year, it is externally balanced looking at the balancer


E440 is 1970
As Dan posted, 440E is cast crank


Actually E440 is 1969.
Posted By: B5 Bee

Re: Mid 70's Six Pack Bottom End?? Steel Or Cast Crank? - 02/17/18 05:40 AM

Originally Posted By 62maxwgn
Originally Posted By B5 Bee
Originally Posted By cudaman1969
wasnt E 1970 year, it is externally balanced looking at the balancer


E440 is 1970
As Dan posted, 440E is cast crank


Actually E440 is 1969.


Yes, my mistake. Can't blame it on a fat finger typo. rant
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