M/P HEMI BLOCKS

hi,
just got (2) iron hemi blocks (gen II)from Chrysler, one 4.5 bore and one 4.24 bore will post info and photos Monday on backorder 3/4 years (both sold)
gary

look like world castings

4.50 bore P5160150AC list $3800.00
4.24 bore P5160151AC list $3600.00

Who is casting them now and how much was the ransom??

Supposedly, Mopar has been trying to get 150 blocks machined that they already have cast. The Mopar exec that promised me that has since retired. Maybe it’s those blocks.

Maybe Mopar should offer a partially machined blocks or raw castings for those at that level?

Who casted the blocks and are there more coming?

I would love to see these things starting to flow again.... It would be nothing but good for the hobby, especially now that the economy is rocking and rolling.

I'd be willing to bet most, not all, broken blocks at really high power is more from a bad tune, or some other failure. Detonation, oil, whatever.

Wow, I'd love to get one in either bore diameter

updated info first post
gary

Jegs is showing in stock!

My gut says these have got to be the very last run from Dalton, I'd like to see the foundry mark.

If you got any shots of the label, I might be able to figure out who machined them.

machining wise, the story I was told was Royal Oak Boring up and quit, but who knows...maybe they didn't get paid or didn't get requested increase, or similar business failure. My cousin John actually works for ROI (I for industries...cute eh?)but he never did anything on the Mopar Programs.

Both have finished lifter bores, there is another part number for unfinished lifter bores

Zippy, Package date on label was 07/17/2018 , I will get vender code, I'm showing eta of 10/01 for one more of each

Dumb question I know, but is there any chance of an average guy like me getting one of these for a build this winter?

Just an educated guess here,but I’m thinking these are part of the inventory that I spoke to the Mopar rep about at the booth last fall when I went to the Dallas NHRA race. He assured me that they had 150 castings waiting to be machined at a facility. They were due out by the SEMA show. Looks like they are nine months late. One of the guys on the board here knew him and called him up to check on the blocks. His shop had done some machining for Mopar before. He said they were at the facility already to be machined. I guess these are those castings.

So if this is correct, then I suggest you call Mancini Racing or your local dealer to get one ordered now. They may not cast anymore. I’m not sure if these were new castings or leftover inventory from Mopar. The rep told me they were the world designed block. Tim Banning may know at For Hemis Only. If you wait, you may not get one. Who knows, if these sell out quickly, Mopar may make some more!

Wow, the Jeg's price is $1,000 extra for the 4.500" bore. That hurts.

Yes, you could get one if you will pull out your credit card and hit the button.

LOL, It is ready!!!

As someone who has never had a hemi before, what are the pitfalls I should look out for as far as these blocks? Any trouble areas?

You won't know before you get it. Hopefully, everything will be fine. The last one I got was decent.

I have a Mopar M block for my Hemi and everything was spot on. Came in at the 4.500" I only had to dust the bores to 4.503 to fit my JE Pistons.

Thanks, I am going to order from Jegs unless you folks have a better place for me to try. I appreciate the replies as my dream has always been a real hemi.

If you want 4.500" bore someplace else might be cheaper.

Any suggestions? Also can the 4.24 bore blocks go out to 4.500"?

Call Mancini first.

It's exciting to see some new cast iron. But the engineer in me sticks to the lower mass of an aluminum block.

IIRC the 4.24 blocks have full water jackets, the 4.500 blocks have siamesed cylinders. Someone is sure to correct me if that's an incorrect memory.

R.

Common casting, all Siamese, unfortunately there haven't been any water blocks since the prior generation piece marketed as 'megablock'.

I built a cast iron World block back in the early 2000s with the 4.190 rough bore block bought from Mopar per the customer not wanting to take a chance on the larger 4.490 bore block running hot, he ASSUMED that the smaller bore block would have water passages between he cylinders, NOT SO
There may have been around 1.0 to maybe 2.0 inch small opening, part of a very small water passage, down low on the center cylinders, maybe not

Cab, there was no such thing as a Mopar "World" block in the early 2000s.
it didn't exist yet.

If you meant the megablock as I am assuming you might have, then I would have to agree with your findings...the bore would not be a determining factor, small bore was available both ways.

I have a World hemi block in the shop that came new as a 4.24" bore. It is Siamese bore and has PLENTY of meat in the walls. I bored it to 4.5"...took about 25 lbs out of it which was a huge plus! These things are ridiculously heavy.

Looking at bill Mitchell's site, it states "In early July 2018 Gary Stanton had built and dyno tested the first BMP aluminum Hemi block and gave us his approval. It is now Mid August and we are happy to say that we have now just shipped our first 8 BMP aluminum Hemi blocks. We have decided to make a few small modifications at the foundry. Fortunately this will not take too long and Projected ship dates for new orders will begin in the later part of 2018. Due to the demand we are taking orders and asking for small deposits to guarantee a spot on the schedule." Although this is an aluminum block, it's nice to see some more options for blocks are starting to ship out again.

I thought Bill Mitchell had been making aluminum blocks for years?

He was, but he stopped making them a few years ago. He just started talking about producing them again this year with some improvements. Looks like he shipped some recently and is tweaking it again before shipping more, later this year.

Looks like I am going to pull the trigger and get one. I will call Mancini tomorrow morning. I don't have any good Dealerships around to get a block from. May try Jegs if Mancini can't get one.

your correct it was in the late 2000s, not earlier I built that one around 2008 or later with the block ordered from my local Dodge dealer, it was a World block
I did build several other N/A cast iron hemi blocks that where the earlier Mega blocks, one 4.25 bore and the others where either 4.320 or 4.380 bore sizes, CRS
I finished a pump gas EFI 572 C.I. motor earlier this year with one of the old World blocks that was 4.490 rough bore size, it made right at 799 HP at 6500 RPM, a little less torque than HP

Just took the plunge. Now I just need everything else lol.

I had a freind at a dealer look up the numbers. They are still saying not avalable product under developement.

Well I ordered mine from Jegs, and surprise surprise they are back ordered.


Called Mancini... Nothing

So at this point, if anyone has a usable ( not cracked or otherwise destroyed) hemi block send me a pm.

Thanks,

Darrin

Yes: I see on the JEGS site the 4.5 block is a bit over $4k and is supposed to ship in a week while the 4.24 bore is a bit over $3k and is supposed to ship in a couple weeks.
So that is a no-go? I was going to order one as well but I guess it isn't worth me phoning?

Did you speak to someone at Jegs or get an email notification?

Both. Apparently there are 8 4.24 rough bore blocks back-ordered at this time.

The estimated shipping is 9-20, but we all know what that means.

Ok, thanks Darren. I saw this post and put an order in too. I’m probably one of the eight. I didn’t get a notification of backorder though. Wasn’t getting my hopes up anyways since they haven’t been available for so long.

No problem, Here's hoping we both can get our hands on one before we hit the nursing home!

I talked to him a while ago and he said he had 50 blocks unmachined. He said when Chrysler pulled out of world and took all the machine out and left him high and dry with no one to machine the raw blocks.

Is there a chance that any of these are going to machined to be wedge blocks? Does anyone know what the current part number is for the 4.310 and 4.500 wedge 440 blocks?

Not sure current , but i just bought a new in box 4.310 wedge block today . It is about 10 years old though
And no it wasnt cheap like a chev thats for sure . But beggers cant be choosers

Tex

Paid $2600 in 2000 for a 4.310 mega block.I'm up to 4.385 these days!

I wish
Along with everyone else who needs a decent block

Tex

Good luck,many advertise the blocks but don't have them.I have talked to many suppliers that tell me they can get me blocks but when I place an order for 6 or more things get quiet.The few that I have been able to secure were only able to be bored .030 and were at minimum at that.They also needed a lot of corrected machine work.Be wary of what you find.I know guys who have been sitting on questionable blocks waiting for the opportunity to cash in.For myself I'll build aluminium before iron.

Thats interesting, the problems you mention have been with the latest hemi blocks released 1-2 years ago? I know of 4 of them built with no issues and I have one of my own still in the box I'm waiting to build some day, maybe. Guess my guys have been lucky to not have any issues. Ive heard others on here have good luck too with them. Thats too bad some are not up to par.

It’s my understanding that the last groups of world iron blocks were fine. They were sold right up until Mopar pulled the plug. I bought one of those from an individual long after they were discontinued. I think he got it from either Jegs, Summit or Mancini. The paper work came with it. All these new blocks that have been talked about are the ones in question.

My scheduled ship date from Jeg's was yesterday so I emailed them. This morning they came back and said 11/5.

Same here.

With a little help and detective work, I've figured out the machining facility. They are Michigan based.

We haven't quite figured out the foundry yet, however if this mark (attached) is present then these would be the old castings made in Warsaw Indiana which were sitting after Royal Oak boring quit, which my former colleague Dale had mentioned to several racers.

We can't go by dates on the block, because those just indicate when they were machoned. MP never required a separate casting date.

Lots of questions. Would this foundry produce castings again? Are the core boxes/remaining foundry tools still there? Did some genius bean counter scrap the tooling?

I might give the machine shop a call Monday to see if they would be willing to discuss what they have.

Btw, anyone remember the final version of the prior generation water block, how...at the very end, most of them were really smooth, nice looking castings...they had a rough start but, finally everything was nice, and then of course the plug was pulled....well, the foundry that cast those was bought up by the company that cast the "world" (technically Chrysler) block. Wonder if those tools to make the water block still exist also. All our eggs are kinda in one basket.

Somebody at MP (or is it "dodge" these says since nobody else does motorsports) ....whoever it is should negotiate with DF and get them kicked off again, since there's a machine shop all set to go. And then, after that is fixed do whatever needed, repair the tools and pay MC whatever they need, and reboot the water block too. It appears they have in-house machining, if capacity is an issue. I gotta wonder if anyone is looking at this stuff.

Where is the LIKE BUTTON for this? Good idea Zippy. I hope you can use yoru connections and pull it off. b
Be nice to have the 426 HEMI block available again at an affordable price that could compete with the Chevy and Ford stuff. Heck if they can make FE ford blocks and have them readily available, then we should have HEMI blocks and have them readily available too.

Thanks. The volume is really low on our stuff compared to the other brands, it's harder to justify but not impossible to justify. Especially when crate engines can be sold.

It's a weird deal as I haven't worked there since 2013, but luckily am on good terms with enough folks to communicate a bit.

How is big block Chrysler volume lower than FE ford stuff? Or Pontiac?

It can't all be "volume" sold because it doesn't make sense. I mean how many pontiacs are out there? My bet is the Chrysler stuff is 10:1 over Pontiac at a bare minimum.

Other internal brands. Mopar OEM replacement parts, Mopar Accessories, Mopar Reman, and so forth. These are not all the same thing.

Pull out a 2005 MP catalog and look for late model cold air intakes.
P4510832 is one that I remember from cars built at that time. Then, try to find one for a 2018 model, and you'll find the part numbers are all 770-series. No longer a Performance part. Well gee whiz, what happened there?

Which product lines make the most profit for the least amount of manpower? Consider one commodity alone, sheetmetal, for any OEM. What are the profit margins of sheetmetal vs. an engine block out of production since 1972. If a manager's worth/future employment is based on profit alone, which will he or she dedicate more resources towards?

Lastly, in a thread about $3000+ hemi blocks, I'm not sure why big block Chrysler as a whole would be brought up. 99% of them are oem Wedge blocks, and not every customer wants to step up.

Hard to step up to buy something that refuses to exist.

There is obviously a market there because even with the retarded pricing they are still sold out. You put BBC blocks at the Mopar price point and those sales will evaporate too.

If there was a foundry that was owned and run by a Mopar fan instead of a GM fan, things might change. The current players are only interested in selling what they want to sell more so than what people want to buy.

JMHO.

Kevin

You made my point. The reason no one makes blocks for Chrysler guys isn't a volume issue. It's a spending issue.

The cheapskate Chrysler guys won't buy it. Then when the stuff isn't made any more they [censored] like a bunch of blue hairs at a Sunday brunch.


It has nothing to do with volume, unless the volume of which you speak is the volume of cheap assed Chrysler guys who will run a 50 year old clapped out block that was never designed to take the geometry guys are now using, at RPM's never considered and throw some cement in it with aluminum caps and a girdle and call that good.

In that, we as Chrysler people have a volume issue.

So are they back out now?
https://www.jegs.com/i/Mopar-Performance/312/P5160151AC/10002/-1

I see all the comments about how the Mopar crowd are all too cheap to buy a $3000 iron big block, yet all I remember is even when they were supposedly available, the customers of mine always had to hunt and wait to get one.

If the Mopar crowd was so cheap, the blocks would be sitting on the distributors shelves collecting dust........ yet every one that was ever made got sold no problem.

Mega blocks - gone
World blocks - gone
Koleno blocks - gone

You forgot "The Block" but its an unknown but may be gone

Tex

Tex, I didn’t mention “the block” because I believe there are a number of them that are in machining limbo.
If they ever get done and offered to the public, I’m sure they will sell quickly....... unless priced into oblivion.

If the first batch gets finished and sold, and they don’t ever cast another batch........ then those will be added to the “gone” list.

I love the BBM platform....... but it sure has gotten hard trying to build something that will make more power than a stock block will take and still be reliable.

Reading this post is making my head spin. Is there any site or article that describes the various hemi blocks? I know the block in my car has a "-M" designation but don't know anything else about it.

Agreed, in my case what are the ones that Roseville and Sasquatch (Marsh Performance) were selling 1.5 to 2 years ago? Those I understand were Very good blocks?

This month Muscle Motors quoted me just under US$5000.00 machined for assembly . But 8-12 weeks maybe . A real shame as no matter what some TAVO 's? , TACO's ? might say there is demand . Even the class racers must be desperate for a usable replacement block .

Tex

PS : local slang TAVO , tight ar$ed valiant owner . Guess could be tight ar$ed chrysler owner

I LOVE SLANG!!!!!

Tex

PS : local slang TAVO , tight ar$ed valiant owner . Guess could be tight ar$ed chrysler owner [/quote]


Thanks for a new slang term Tex, made me laugh

If they sell the blocks for 5000.00 I do not think they will sell a lot of them. They need to be around 3 to 3500.00 and they will sell a lot of them.

https://www.jegs.com/i/Mopar-Performance/312/P5160151AC/10002/-1

They have been on back order since May. Make the call and see for yourself. I personally don't think they'll be available for years, if at all but they will call me next week.

When does Jegs charge your credit card? When you place the order, or when they shipped the block?

Must be when they ship the block, as my card has never been charged.

Well running that part number the best news is that it’s not “NS1” (part no longer made). Matter of fact I run that number (P5160151AC) and it has a note at the top: “managed allocation lvl2-part under development for reman, accessories or Mopar Performance, exp Oct 01, 2018

Submitted orders pending...

Source PDC replenishment info: cannot determine, we are working to obtain part availability


None in stock, none at dealers.....

On Jeg's, the 4.24 block has an estimated ship date of November 5 and the 4.5 block is now listed as manufacture's availability date unknown. They had been the listed as the same dates previously.

Wouldn't be surprised to see the 4.24 block listed as unknown at some point.

Well, I ordered one from Jegs. I don't need it right now, I had one on hand I bought years ago that I just got machined. But if they take forever to get, I might as well get on the list so I'm ready for the next one. I got $40 off with a Jegs discount code too.

I ordered one too. We'll see what happens I guess.

It certainly can’t hurt.... if the bean counters see interest they may be encouraged to fulfill orde s

Anyone receive a shipped notice from Jegs yet?

I'm interested in this too. Bump to the top.

My most recent update from Jegs says November 5. My guess is the shipping date will change again the closer we get to November.

I haven't received anything since the initial order confirmation. On my order status page on their website it only says backordered.

The two blocks i got from mopar last month were cast at dalton foundry which would mean the were old castings, so the rumor must of been true that mopar had 150 left over blocks that needed machining. Tag on crate said "job 122 of 150"
Gary

Ive been watching this thread for awhile and finally decided to chime in. The 4.5 bore block I received in April states Hemi #5 of 17 on crate with the current mopar pn however DOES appear to have been in a warehouse for quite some time.

When you say it appears to have been in a warehouse, do you mean some of the machined surfaces look they have been done for awhile? Did you guys get these blocks from a local Mopar dealers?

Any opinions on buying one and converting it to a wedge? I'm aware of the details of conversion and since there's no wedge blocks this seems like a good option.

Well I went ahead and ordered one. If I get it I'll see how much effort is to convert to a wedge. If I don't convert it I'll just put in the corner and build it in my elderly years.

I contacted Jegs online and the guy said my order status has been changed from estimated ship date of "Nov 5" to "backorder".

It seems they are trickle feeding these blocks out as they can machine them. Dealers themselves don't get any clear communication on block production scheduling.

A tip to anyone receiving one of these blocks check the quality of the machining immediately. I was meeting with one of our dealers last week who received a MP cast iron HEMI block that had pushrod notches machined so close the the cylinder bores that a head gasket will never seal it. It is not possible to adequately repair machining errors in critical areas like this. If you don't get back to MP within the 30 day limited warranty period it's tough luck.
Be sure to check this.

My thoughts axactly. Anyone ordering one of these blocks for future value needs to be wary that it might be an expensive boat anchor. It appears that these are leftover world castings that got pulled from machining process when the problems came between the parties. I’m sure the new guys were the cheapest bid and probably started from scratch.

Got a report recently from a dealer in CA, he received one that he'd had on backorder for a couple years.

Been away for a while but yes when I said that it appeared to have been in a warehouse for quite awhile is the best way I can describe it. All the machined surfaces on the block had some surface rust. Cylinders, lifter bores, mains etc. Even the water jackets around the cylinders had traces of rust. Leading me to believe it has been sitting for some time. I purchased the block from a dealer here on Moparts. It was a great transaction and I have no issues with that. However after reading some of the recent post about the blocks possibly being leftovers or defective does concern me. This build is going to be a process for me to complete so I have no idea of any issues other than some surface rust so far. Curious about anyone else with the recent shipment of these "new" blocks. Hopefully good news!?!

Well... Nov 5 passed with no update from Jegs.

Tomorrow I will probably just cancel my order. Anyone here have 1st hand experience with BMP aluminum hemi blocks?

Thanks
Craig

I had one of the older Hemi blocks. I have one of the older wedge blocks too. Both are and were good blocks.

Don't give up so easily.

I agree.

Or, if you're going to quit Jegs, then quit and try a Chrysler dealer.

Jegs is cool and all, I like 'em other than the time they used Yellow Freight to deliver my roll bar kit (long story)....but unless they've changed their purchasing practice, they only place orders with Chrysler at certain intervals. It's usually a long time between orders. Your backorder could still be sitting in jegs' system and not even placed with Chrysler yet.

Now Jeg's says February.

I went ahead and canceled my order. Between the wait, the questionable quality and the work involved in converting to a wedge I decided to leave the victor headed motor project on the shelf for now.

Jegs’s sent me an update of December 7. Still don’t think I’ll get it but it doesn’t hurt to try.

Here's a new world siamese for sale.

https://www.ebay.com/itm/426-Hemi-MEGA-BLOCK-NEW-RARE-FIND/302960925250?hash

Here is what Jegs emailed me on 11-11:

Order ... for part number 312-P5160151AC is currently on backorder and has an estimated ship date of 02/01/2019.

Fine with me, I don't need it right now anyway. Just planning ahead.
And they still haven't charged my card.

Wow, $6100 would temp me on selling my 4.250 bore. But then I’d get stuck with my stock 66 heads and the rest of my hemi parts. Been there once without a block and lots of other parts left over.

Did some digging and found that the same guy who had the Mega block has a Series 2 Bridgeport for $5250. That's a sweet price for a machine that's quite a bit bigger than regular vertical spindle milling machines.

R.

Click the "Other Listings" and then select "completed listings" for more.

A series 2 would be nice! You could set it up for about every block machining operation except maybe align bore/hone.

I just got 2 new 4.5 bore hemi blocks from Mopar. Check out best machine's web site they just got two of them also and posted pictures.

Right there on Best Machine's Fakebook page. Cool beans.

What's the deal. Past few days I been hearing people getting new mopar Hemi blocks. Are they making them again??? I thought not.

It’s the 150 or so leftover blocks of world design that never got machined when Mopar pulled the blocks. My bet is there will never be anymore because the casting part is no longer being done. Just my bet, though.

I was told that Dalton out of Ohio is doing the Engine block castings

J&B out of Michigan is doing the machine work. I will have my two block here Monday!

Where did you order your blocks? I have had P5160149ac on order for most of 2018 with Jegs.

I am going to be selling one of mine if anyone is interested. One just sold on e bay for $6200, make me a PM offer before I list it on e bay.

Rvw did you receive the blocks?

Yes they both showed up yesterday from the freight company. I have them in my posession. I will unbox them today and get some pictures. If anyone is interested send me a PM to discuss.

Congrats...this is getting good.

Actually JNB/Fowlerville but who's counting.
As long as people get their parts.

Backwards D with F marking=Dalton Foundry mark, it's cast into the block.

These new (old World blocks I hear) blocks everyones getting now. How are they checking out at the machine shop?

Hopefully I'll know pretty soon my block is currently with my machinist. Excited to get it back and get started if all goes well.

Happy New Year! Any information on the block from the machinist yet?