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Factory cross bolted 4 bolt main RB block #1277961
08/01/12 09:12 PM
08/01/12 09:12 PM
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Cincinnati OH
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Bishop Offline OP
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I'm picking up my block from the shop tomorrow, its getting a cleaning been sitting in the trunk of a 64 Plymouth car for years. It looks like a cold weather block but it has NO casting dates or numbers It Has the mains just like a 426 Hemi 4 bolt crossbolted mains. It only has WT & V426 stamped on the engine ID pad it is slightly smaller than 4.25 bore, I don't think it ever was finished honed or ever had a dowel pin in the block. Anyone ever seen one of these block before. The previous owner said it was a NASCAR block but the HEMI did so well they never put these into production. I'll post pictues tomorrow.

Brian

7317650-644264.JPG (234 downloads)
Last edited by Bishop; 08/02/12 09:25 PM.
Re: Factory cross bolted 4 bolt main RB block [Re: Bishop] #1277962
08/01/12 11:27 PM
08/01/12 11:27 PM
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Today? Who Knows?
1_WILD_RT Offline
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"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
Re: Factory cross bolted 4 bolt main RB block [Re: 1_WILD_RT] #1277963
08/02/12 01:24 PM
08/02/12 01:24 PM
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ILL
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RB Block ???? Could it be a Hemi 4.190 rough bored block that was never fully finished with final bore OD ??
Need pics....

MLR426

Re: Factory cross bolted 4 bolt main RB block [Re: MLR426] #1277964
08/02/12 09:26 PM
08/02/12 09:26 PM
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Cincinnati OH
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Bishop Offline OP
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#2

7319273-644261.JPG (301 downloads)
Re: Factory cross bolted 4 bolt main RB block [Re: Bishop] #1277965
08/02/12 09:30 PM
08/02/12 09:30 PM
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Cincinnati OH
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Bishop Offline OP
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Cincinnati OH
#3

7319279-644262.JPG (255 downloads)
Re: Factory cross bolted 4 bolt main RB block [Re: Bishop] #1277966
08/02/12 09:36 PM
08/02/12 09:36 PM
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1_WILD_RT Offline
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Interesting piece, I think the Nascar story may be spot on.... Waiting to hear from those who might know.....


"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
Re: Factory cross bolted 4 bolt main RB block [Re: 1_WILD_RT] #1277967
08/02/12 09:43 PM
08/02/12 09:43 PM
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Round Lake Beach, Illinoisy
Rhinodart Offline
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Very cool!


The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!
Re: Factory cross bolted 4 bolt main RB block [Re: Rhinodart] #1277968
08/02/12 09:49 PM
08/02/12 09:49 PM
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Cincinnati OH
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Bishop Offline OP
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#4

7319320-644263.JPG (312 downloads)
Re: Factory cross bolted 4 bolt main RB block [Re: 1_WILD_RT] #1277969
08/03/12 12:00 AM
08/03/12 12:00 AM
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State of Fascism
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52savoy Offline
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Quote:

Interesting piece, I think the Nascar story may be spot on.... Waiting to hear from those who might know.....




It's been talked about before on Moparts.. NASCAR is the consensus from what I remember. In the 70's, when Hemis were on the way out Chrysler made up a batch of new 426 wedges. I believe there is information in the original mopar racing manual(white book).

Re: Factory cross bolted 4 bolt main RB block [Re: Bishop] #1277970
08/03/12 12:19 AM
08/03/12 12:19 AM
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Spokane Washington
ScottSmith_Harms Offline
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WT = Water Tested Block
V426 = 1964 Max Wedge Engine

So.....It's definately not a newer casting, it's a 1964 piece. Yes, I've heard of them but never seen one, one of those "mythical" engines you hear about now and again. Nice to see one surface, maybe you could post some good clear pictures of all the casting numbers and stampings you can find? That would be great!

As an aside the next question would be value? Tough to say because it's not really matched up to any particular car ever built, so while certainy cool, it's just a novelty.


Re: Factory cross bolted 4 bolt main RB block [Re: ScottSmith_Harms] #1277971
08/03/12 12:45 AM
08/03/12 12:45 AM
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52savoy Offline
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Quote:

WT = Water Tested Block
V426 = 1964 Max Wedge Engine

So.....It's definately not a newer casting, it's a 1964 piece. Yes, I've heard of them but never seen one, one of those "mythical" engines you hear about now and again. Nice to see one surface, maybe you could post some good clear pictures of all the casting numbers and stampings you can find? That would be great!

As an aside the next question would be value? Tough to say because it's not really matched up to any particular car ever built, so while certainy cool, it's just a novelty.






Chrysler had a bulletin on how to set up a 426 wedge motor in NASCAR..around 1971-73ish since Hemis and other exotic engines were banned. I have some information on it and will try to remember to post a picture(s). I would guess this block is from that time period because of the webbing.

http://www.freewebs.com/danno340/kkd/71-72.html

Re: Factory cross bolted 4 bolt main RB block [Re: 52savoy] #1277972
08/03/12 01:15 AM
08/03/12 01:15 AM
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Chilliwack B.C. Canada
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The webbing and the V426 don't really correlate for me. Interesting piece.

Sheldon

Re: Factory cross bolted 4 bolt main RB block [Re: ScottSmith_Harms] #1277973
08/03/12 01:32 AM
08/03/12 01:32 AM
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So Cal
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Quote:

WT = Water Tested Block
V426 = 1964 Max Wedge Engine

So.....It's definately not a newer casting, it's a 1964 piece. Yes, I've heard of them but never seen one, one of those "mythical" engines you hear about now and again. Nice to see one surface, maybe you could post some good clear pictures of all the casting numbers and stampings you can find? That would be great!

As an aside the next question would be value? Tough to say because it's not really matched up to any particular car ever built, so while certainy cool, it's just a novelty.






Do the casting features of that block correlate with other early 64 Hemi blocks?


Fall Fling 28 October 19, 2024 at Woodley Park, Van Nuys CA
300+ Mopars, 125+ swap, midway, Friday Malibu cruise,
Re: Factory cross bolted 4 bolt main RB block [Re: autoxcuda] #1277974
08/03/12 02:08 AM
08/03/12 02:08 AM
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Quote:

Quote:

WT = Water Tested Block
V426 = 1964 Max Wedge Engine

So.....It's definately not a newer casting, it's a 1964 piece. Yes, I've heard of them but never seen one, one of those "mythical" engines you hear about now and again. Nice to see one surface, maybe you could post some good clear pictures of all the casting numbers and stampings you can find? That would be great!

As an aside the next question would be value? Tough to say because it's not really matched up to any particular car ever built, so while certainy cool, it's just a novelty.






Do the casting features of that block correlate with other early 64 Hemi blocks?




It's got non-hemi mounting bosses & the cold weather webbing on the exterior of the block which first was used in 66 and up to 77... Makes me think it was cast later...


"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
Re: Factory cross bolted 4 bolt main RB block [Re: 1_WILD_RT] #1277975
08/03/12 06:54 AM
08/03/12 06:54 AM
Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms Offline
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I am going soley off of the codes stamped on the pad, V = 1964. I agree that the block features look like a much later block, however I find it odd that they'd use that on a block cast in a later year. One of the reasons I asked for photos of the other casting #'s and stamps.

Re: Factory cross bolted 4 bolt main RB block [Re: ScottSmith_Harms] #1277976
08/03/12 08:45 AM
08/03/12 08:45 AM
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Marion,Indiana
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Back in the early 90's I fixed up a one owner 65 Coronet 500 426sw 4 speed for my Uncle.It had one of those blocks in it.The machine work was not done so it just had two bolt caps but the "nubs" were there for the cross bolts.The big kicker is the id pad was stamped A426 5 3 which I assumed was a May 3 assembly date.Original owner swore it was the original block for the car and he had no idea what a cross bolt block was.My uncle sold the car to some guys from MI about 1996-ish.

Re: Factory cross bolted 4 bolt main RB block [Re: ScottSmith_Harms] #1277977
08/03/12 10:23 AM
08/03/12 10:23 AM
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1_WILD_RT Offline
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Quote:

I am going soley off of the codes stamped on the pad, V = 1964. I agree that the block features look like a much later block, however I find it odd that they'd use that on a block cast in a later year. One of the reasons I asked for photos of the other casting #'s and stamps.




I meant to post above that the stampings agree with your time frame but those are easier to change then cast features... But to complicate things being a special block they might have cast in features they were thinking of for future implementation...


"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
Re: Factory cross bolted 4 bolt main RB block [Re: 1_WILD_RT] #1277978
08/03/12 11:41 AM
08/03/12 11:41 AM
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Memphis
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Anybody else notice the head bolt bosses in the valley like a Hemi has? It seems to have a Hemi bolt pattern but no oil drain backs....weird.


Take care,
Rick
68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451
Re: Factory cross bolted 4 bolt main RB block [Re: HemiRick] #1277979
08/03/12 02:08 PM
08/03/12 02:08 PM
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NJ-USA
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Quote:

Anybody else notice the head bolt bosses in the valley like a Hemi has? It seems to have a Hemi bolt pattern but no oil drain backs....weird.




Not sure what you are seeing. The valley looks all B wedge to me. Interesting deal...I think I saw something like that over at Jerry Steins place.

MB

Re: Factory cross bolted 4 bolt main RB block [Re: HPMike] #1277980
08/03/12 02:34 PM
08/03/12 02:34 PM
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So Cal
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This Hemi has no markings on the pad

7320226-IMG_6639.JPG (176 downloads)

Fall Fling 28 October 19, 2024 at Woodley Park, Van Nuys CA
300+ Mopars, 125+ swap, midway, Friday Malibu cruise,
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