Previous Thread
Next Thread
Print Thread
Another Hemi Block Question - Which Version? #1796573
04/04/15 09:53 PM
04/04/15 09:53 PM
Joined: Jan 2003
Posts: 42,709
Spokane Washington
ScottSmith_Harms Offline OP
Mr Wizzard
ScottSmith_Harms  Offline OP
Mr Wizzard

Joined: Jan 2003
Posts: 42,709
Spokane Washington
Looking at a new Hemi block Mopar #P5007669AB. This appears to be the version that has wedge style motor mount ears? If so can they be put onto a Hemi K-frame with some type of mount adapters like Shumaker makes?

Re: Another Hemi Block Question - Which Version? [Re: ScottSmith_Harms] #1796574
04/04/15 10:26 PM
04/04/15 10:26 PM

A
Anonymous
Unregistered
Anonymous
Unregistered
A



Scott, I am fairly confident that version of the hemi replacement block has the wedge ears and the normal hemi mount pads. I know Dudek ran one like that in the road runner.

Re: Another Hemi Block Question - Which Version? [Re: ScottSmith_Harms] #1796575
04/04/15 10:27 PM
04/04/15 10:27 PM
Joined: Jan 2012
Posts: 2,134
Stuttgart, Arkansas
rickseeman Offline
top fuel
rickseeman  Offline
top fuel

Joined: Jan 2012
Posts: 2,134
Stuttgart, Arkansas
I wasn't aware anybody made mounts for doing it backwards.


2011 Drag Pak Challenger
Re: Another Hemi Block Question - Which Version? [Re: rickseeman] #1796576
04/05/15 01:34 PM
04/05/15 01:34 PM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
master
B G Racing  Offline
master

Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
There was a run of casting with the wedge style mounting ears.It was someones bright idea that the hemi could be bolted into any chassis with wedge k-member.It created a nightmare for any type of header application and most who had one cut the wedge mount casting off.The other issue is depending on the casting date and block serial number,most of these blocks fell in to that catagory of "junk"blocks that wouldn't hold demension after heat cycling.They were sold as "machine shop rejects" and were offered for $400.Many found their way to swapmeets.Check back in the archives and you will find mopar part outlets that offered them for $900 at the time.We had some that we returned for refund.

Re: Another Hemi Block Question - Which Version? [Re: B G Racing] #1796577
04/05/15 02:14 PM
04/05/15 02:14 PM
Joined: Jan 2003
Posts: 42,709
Spokane Washington
ScottSmith_Harms Offline OP
Mr Wizzard
ScottSmith_Harms  Offline OP
Mr Wizzard

Joined: Jan 2003
Posts: 42,709
Spokane Washington
Do you have any idea of what serial numbers were part of the "the bad run"?

Re: Another Hemi Block Question - Which Version? [Re: ScottSmith_Harms] #1796578
04/05/15 02:20 PM
04/05/15 02:20 PM
Joined: May 2005
Posts: 6,446
NJ-USA
H
HPMike Offline
master
HPMike  Offline
master
H

Joined: May 2005
Posts: 6,446
NJ-USA
I remember those...

Yes. you'd have a hell of a time trying to get an exhaust to work with those...Never used any...saw a few..

MB

Re: Another Hemi Block Question - Which Version? [Re: HPMike] #1796579
04/05/15 02:23 PM
04/05/15 02:23 PM
Joined: Jan 2003
Posts: 42,709
Spokane Washington
ScottSmith_Harms Offline OP
Mr Wizzard
ScottSmith_Harms  Offline OP
Mr Wizzard

Joined: Jan 2003
Posts: 42,709
Spokane Washington
I was told that while the Hemi mount bosses are on them, they just aren't drilled and tapped for the studs which is an easy fix. Also that the stock Hemi manifolds don't clear the 440 style mount ears, which is also an easy fix with a grinder.

So now the concern is the block castings themselves being a problem. Any idea how to determine which ones are good or not?

Re: Another Hemi Block Question - Which Version? [Re: ScottSmith_Harms] #1796580
04/06/15 10:29 AM
04/06/15 10:29 AM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
master
B G Racing  Offline
master

Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
Quote:

Do you have any idea of what serial numbers were part of the "the bad run"?




There is a stamped number either on the pan rail,side pad, or top pad.The casting run was aprox,500 blocks,Chrysler claimed the first batch were the ones with issues but we learned later that the mid 300s were bad also.The blocks we sent back were in the 350/360 area.
We were told we could keep them for $400 each or return them.At the time our cost for the blocks was under $2000 each.
When I get a chance I will try and find the paper work for those blocks.

Last edited by B G Racing; 04/06/15 10:31 AM.
Re: Another Hemi Block Question - Which Version? [Re: B G Racing] #1796581
04/06/15 11:14 AM
04/06/15 11:14 AM
Joined: Jan 2003
Posts: 42,709
Spokane Washington
ScottSmith_Harms Offline OP
Mr Wizzard
ScottSmith_Harms  Offline OP
Mr Wizzard

Joined: Jan 2003
Posts: 42,709
Spokane Washington
That would be great, thanks Bob

Re: Another Hemi Block Question - Which Version? [Re: ScottSmith_Harms] #1797317
04/07/15 12:13 PM
04/07/15 12:13 PM
Joined: Jan 2003
Posts: 73,623
U.S.S.A.
JohnRR Offline
I Win
JohnRR  Offline
I Win

Joined: Jan 2003
Posts: 73,623
U.S.S.A.
Originally Posted By ScottSmith_Harms
I was told that while the Hemi mount bosses are on them, they just aren't drilled and tapped for the studs which is an easy fix.


It's not that easy , they aren't machined to dimension either.


running up my post count some more .
Re: Another Hemi Block Question - Which Version? [Re: JohnRR] #1797535
04/07/15 03:22 PM
04/07/15 03:22 PM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
master
B G Racing  Offline
master

Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
Originally Posted By JohnRR
Originally Posted By ScottSmith_Harms
I was told that while the Hemi mount bosses are on them, they just aren't drilled and tapped for the studs which is an easy fix.


It's not that easy , they aren't machined to dimension either.



I agree,even though they have the flat area for the hemi mount they may need to be machined to fit the mount or the mount cut to fit the flat area.The wedge style mounts on a hemi block was someones' wet dream.They may have had the hemi/wedge conversion kits in mind but gave no consideration for the exhaust system.As far as I'am concerned engine plate is the way to go unless your a purist doing a hi-end resto.
We had wedge block that had the hemi mount area that constantly threw oil out at high RPMs.After a few seasons of frustration chasing the leak it was finally found.At the front corner on the drivers side the deck was drilled for the hemi oil drain back hole and the wedge gasket and head didn't cover it.These are just a few of Mopar screw-ups back in the days.

Last edited by B G Racing; 04/07/15 03:30 PM.
Re: Another Hemi Block Question - Which Version? [Re: ScottSmith_Harms] #1797894
04/07/15 09:07 PM
04/07/15 09:07 PM
Joined: Jan 2003
Posts: 42,709
Spokane Washington
ScottSmith_Harms Offline OP
Mr Wizzard
ScottSmith_Harms  Offline OP
Mr Wizzard

Joined: Jan 2003
Posts: 42,709
Spokane Washington
Bob, where would block number
#M70669 fit into the picture?

Re: Another Hemi Block Question - Which Version? [Re: ScottSmith_Harms] #1798654
04/08/15 04:33 PM
04/08/15 04:33 PM
Joined: Dec 2003
Posts: 352
St. Paul, MN
S
stat5 Offline
enthusiast
stat5  Offline
enthusiast
S

Joined: Dec 2003
Posts: 352
St. Paul, MN
Timely subject.

What about mega block with the number M70149

Thanks

Re: Another Hemi Block Question - Which Version? [Re: ScottSmith_Harms] #1799440
04/09/15 02:12 PM
04/09/15 02:12 PM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
master
B G Racing  Offline
master

Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
None of the runs we have seen show up with an M-5digits,Is the number cast into the block or stamped and what location?

Re: Another Hemi Block Question - Which Version? [Re: B G Racing] #1799479
04/09/15 03:05 PM
04/09/15 03:05 PM
Joined: Dec 2003
Posts: 352
St. Paul, MN
S
stat5 Offline
enthusiast
stat5  Offline
enthusiast
S

Joined: Dec 2003
Posts: 352
St. Paul, MN
That M-5digit number is stamped into the block. I looked the block over and did not see any other stamped numbers.

On the block I looked at it was stamped in the drivers side front of the block on a machined surface right around the corner from where the oil pump mounts. I got a picture of it if interested

What does the follow alpha/numeric number that is cast into the block mean? 7A16

Re: Another Hemi Block Question - Which Version? [Re: ScottSmith_Harms] #1800306
04/10/15 01:39 PM
04/10/15 01:39 PM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
master
B G Racing  Offline
master

Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
It took some checking and we found the M-5digit blocks were cast with no production date and many were the variety that had the 440 mounting ears that were removed.Check your block for a flat machined area above the oilpump mounting surface and machined areas where the 440 ears were.The quality of these blocks is unknown.Look also for porousity in the casting.These blocks were lighter than most Mega blocks and the coreplug holes are shallow.We found that 4 of these blocks have gone through the shop over the years,3 were able to check out and were bored 4.500 and were built to 528" street engines,one is still here.Goes to show we still can learn things if we take time to investigate.

Last edited by B G Racing; 04/10/15 02:05 PM.






Powered by UBB.threads™ PHP Forum Software 7.7.1