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I think the only way would be the vin number.

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If we are talking about a bare block that is the only correct answer lies within the VIN#, or more specifically, the blocks VIN sequence number matching the VIN# of an original Six Pack car..

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the true 6 pack blocks have a high nickle content in the iron.

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the true 6 pack blocks have a high nickle content in the iron.

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That's not true compared to the lo-po or even 4v blocks. They are the same blocks, same cores, same foundries.

Only way to know is how Scott mentioned above, have to tie the partial VIN to a complete V code VIN.

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the true 6 pack blocks have a high nickle content in the iron.

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That's not true compared to the lo-po or even 4v blocks. They are the same blocks, same cores, same foundries.

Only way to know is how Scott mentioned above, have to tie the partial VIN to a complete V code VIN.

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Here's a 70 440 block stamped with HP2, guess which car it came in (Six Pack or 4 barrel) and then explain how you came to either conclusion

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Six pack car. How I came to my conclusion...





Either a coin toss, or the fact that you posted the pic, giving a slight edge to the fact that you took the picture BECAUSE it was a six pack

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the true 6 pack blocks have a high nickle content in the iron.

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and where did you hear this little tidbit of info ???

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Hi guys,

Was wondering what stampings one could look for to determine if a 1970-era (cast in '69) was actually a 440 six-pack block?

Thanks!

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i don't know if this is 100% true all of the the time but the few i've seen were marked 440-6 on the flat area in front of the drivers side head area.

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it will have " " logos all over it..

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Six pack car. How I came to my conclusion...





Either a coin toss, or the fact that you posted the pic, giving a slight edge to the fact that you took the picture BECAUSE it was a six pack

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Ok, here's another block, same question

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sure is a bunch of friendly people here. was just trying to be helpful. never claimed to be an expert, just passing on what i had been told over the years.

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Did anyone insult you calling you stupid or an idiot? I sure didn't see anything of the sort. Relax.

There are lots of old tales about HP engine that are incorrect. You posted at least one of them.

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sure is a bunch of friendly people here. was just trying to be helpful. never claimed to be an expert, just passing on what i had been told over the years.

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Did anyone insult you calling you stupid or an idiot? I sure didn't see anything of the sort. Relax.

There are lots of old tales about HP engine that are incorrect. You posted at least one of them.

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Could it be that HP2 is a carry over from the earlier years Plymouths?

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Would that be an old wives tale or a new one Beep?



*Besides, that would make it a 440 Hemi wouldn't it?

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Could it be that HP2 is a carry over from the earlier years Plymouths?

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Would that be an old wives tale or a new one Beep?



*Besides, that would make it a 440 Hemi wouldn't it?

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Scott ...just wondering in the photos you are posting -- where is that stamp located? Looks like it's not an exposed piece.

Thanks!

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sure is a bunch of friendly people here. was just trying to be helpful. never claimed to be an expert, just passing on what i had been told over the years.

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Did anyone insult you calling you stupid or an idiot? I sure didn't see anything of the sort. Relax.

There are lots of old tales about HP engine that are incorrect. You posted at least one of them.

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.....especially when you espouse it as fact.

SURE would be nice if we could get that sticky I keep mentioning the last 4369 times we have had this thread discussion.....


...........all it needs to say is that THE ONLY WAY TO DETERMINE WHETHER A 440 BLOCK WAS ORIGINALLY INSTALLED IN A 6 PACK CAR IS TO MATCH THE PARTIAL VIN TO A LEGITIMATE 6 PACK CAR'S VIN.


Thats it.

Dave

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.....especially when you espouse it as fact.

SURE would be nice if we could get that sticky I keep mentioning the last 4369 times we have had this thread discussion.....


...........all it needs to say is that THE ONLY WAY TO DETERMINE WHETHER A 440 BLOCK WAS ORIGINALLY INSTALLED IN A 6 PACK CAR IS TO MATCH THE PARTIAL VIN TO A LEGITIMATE 6 PACK CAR'S VIN.


Thats it.

Dave

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Nope, do you? Any basis for your guess?
seriously, I thought you were joking on your first post, but in case you were not....

If you are referring to this emblem (picture below). A 1966 emblem only used on Hemi Plymouths (no Dodges) to identify that they had a 426 Hemi under the hood, and only used for the first half of the year because few people "got it".

Then used/connected to later year (Dodge & Plymouths) to identify big block engines for some type of special High Performance usage? No, I don't see that as being very likely at all..

My opinion: Any 440 Blocks stamped HP meant nothing more than "High Performance Application", and "2" for Second Shift. That's all I make of it.

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HPP was referenced back in the late 50's. Personally I could care less if it is stamped HP or HP2, does not mean a thing unless you match it up to a known six pack VIN. We have all seen C bodys with both stamps.

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What does the arrow mean, the stamp that looks like a sideways letter A?. It's on my block too.

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.......saved it!


Dave

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Scott, I will guess you second pic is six pack too...

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I have only known that you check the vin to be sure of 6 pack

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does anyone know about warranty blocks? Just the internals? If you needed a warranty block for a 6 pack, was it an HP block that you got?

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Not to hi-jack but what does the EHP mean on my 77 440, 7T440 EHP, was told it was out of a Florida Highway Patrol car, no proof but runs strong.

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Not to hi-jack but what does the EHP mean on my 77 440, 7T440 EHP, was told it was out of a Florida Highway Patrol car, no proof but runs strong.

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E means cast crank.

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Not to hi-jack but what does the EHP mean on my 77 440, 7T440 EHP, was told it was out of a Florida Highway Patrol car, no proof but runs strong.

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E means cast crank.

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Which it is, does HP still mean HP?? And what significance does that have in 77?

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yes HP means high performance .

what significance

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Ok how about this one. While at the MATS I got into a little disagreement with Daryl Finch. He claims that all 440 HP2 motors in 70-71 came with the 6-pack balancer and the HP,s got the forged balancer. I said I've have several original HP motors with the 6-pack balancer.
Another myth?

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"The third photo is a factory Service Replacement 440 Short Block ("S" = Service Replacement) if you blew a 440 under warranty in 1970 (ANY 440) this would have been what your car recieved as a replacement. There was no HP or anything else unique about them."

Now, from working @ a dealer (not in the 70's) I know that if ordering a warranty part, you ordered the parts specific to the car...eg. if it was a Eddie Bauer Jeep that needed a wheel warrantied, you looked up the Eddie Bauer wheel, I assume it would have been the same then.

So, if you look up the parts to warranty a 70 6 pack with a grenaded bottom end, you go hmmmn short block, 4 barrel or 3 2bbls? The tech says six pack so you order 3462619 as opposed to the 3462617 4 barrel job.

There is where my question lies about the internals on a warranty block. Did it get stamped "S" at the dealer as it was installed as a replacement, or did they need to go a special route to order a warranty engine (seems unlikely).

If your closest depot happened to have the block you ordered, you probably had it right away, were they stamped at the depot? (unlikely)

Or was there a list of warranty part #'s for engines and transmissions? Seems like a pain in the @$$ to me, they certainly would not have done it for trim or whatever, why engines?

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