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SB Mopar Race Block
#1342771
11/28/12 10:30 PM
11/28/12 10:30 PM
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Joined: Nov 2004
Posts: 3,518
pacific northwest
Stroker Scamp
OP
master
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OP
master
Joined: Nov 2004
Posts: 3,518
pacific northwest
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PN# on the block is a P5153477-340
PN# on the box is a P4876673AD (not sure if the
box is original to the block)
I searched a bit with the casting# but no luck
just trying to find out if I do have a 48*,4 bolt 9.6deck,siamese bore, dry sump block?
any help?
footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip
73 Duster 340 street strip 12.79 @ 105
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Re: SB Mopar Race Block
[Re: Stroker Scamp]
#1342772
11/28/12 10:43 PM
11/28/12 10:43 PM
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Joined: Jan 2003
Posts: 2,813
Blue Ridge, VA
Plumb Wired
master
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master
Joined: Jan 2003
Posts: 2,813
Blue Ridge, VA
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BLOCKS
B. Race Blocks- Cast Iron, R3
Building on Mopar heritage, the "R3" race block family offers the latest in design
technology along with the options to meet your specific needs.
Features:
· Process-controlled castings utilizing high-strength cast iron
· 100% CNC machining with full statistical process control
· Thick deck surface and six-bolt cylinder head attachment
(48° blocks) for improved sealing and reliability
· Various options that provide deck height potentials
of 8.900-inch to 9.600-inch
· Tappet angles in both 59° (stock) and 48° are available
(improved valve train geometry)
(59° blocks are not recommended for use with roller tappets)
· Thicker main webbing and pan rail for improved rigidity
· Four-bolt mains in your choice of ductile iron or billet steel
· Machined for "LA" and Magnum head oiling, as well as engine mounts
1 P5153743 Block, Cast Iron, Race, 340 Replacement, Siamese-bore,
4.175" Rough Bore
1 P4876671AD Block, Cast Iron, Race, "R3", Siamese-bore, 3.998" Rough
Bore, 9.000" Deck Height
1 P4876381AB Block, Cast Iron, Race, "R3", Siamese-bore, 4.050" Rough
Bore, 9.025" Deck Height
1 P4876791AD Block, Cast Iron, Race, "R3", Siamese-bore, 3.998" Rough
Bore, 9.200" Deck Height
1 P4876673AD Block, Cast Iron, Race, "R3", Siamese-bore, 3.998" Rough
Bore, 9.600" Deck Height
Not sure on the casting number, it is my understanding several part numbers share the same casting number.
Last edited by Plumb Wired; 11/28/12 10:44 PM.
RIP Monte Smith
aka: OutlawFish
'98 Bickel Dodge Dakota PST
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Re: SB Mopar Race Block
[Re: Stroker Scamp]
#1342773
11/28/12 10:48 PM
11/28/12 10:48 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I found P4876673AB in one of my books... the letters are updates to it and I dont know what was updated... but what I show is 9.560 deck, siamese,4-bolt iron caps,48*, 318/340 mains with note 1 with is 48* cam tunnel requires cam bearings p4876372 and cam UGL p4876633 or p4876634 
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Re: SB Mopar Race Block
[Re: fishy340]
#1342781
11/29/12 12:58 AM
11/29/12 12:58 AM
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Joined: Feb 2005
Posts: 982
western pennsylvania
b1dartsport
super stock
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super stock
Joined: Feb 2005
Posts: 982
western pennsylvania
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Quote:
Fyi restoration blocks are R blocks also....there showing as of last week 12 48* blocks in stock and the price is 2400+ which is good.
 A Resto Block is a 59 degree wet sump 9.60 R3 with the extra head bolt bosses machined off and the lifter valley opened up. If you want to run a conventional roller lifter like a Crane Ultra Pro it takes a lot of carefull work with a die grinder and sonic checker,but there are some drop in lifters made by Comp. 48* is a much better set up with an R3, its just a pain to locate the goofy cam cores.
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Re: SB Mopar Race Block
[Re: b1dartsport]
#1342782
11/29/12 01:08 AM
11/29/12 01:08 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Fyi restoration blocks are R blocks also....there showing as of last week 12 48* blocks in stock and the price is 2400+ which is good.
A Resto Block is a 59 degree wet sump 9.60 R3 with the extra head bolt bosses machined off and the lifter valley opened up. If you want to run a conventional roller lifter like a Crane Ultra Pro it takes a lot of carefull work with a die grinder and sonic checker,but there are some drop in lifters made by Comp. 48* is a much better set up with an R3, its just a pain to locate the goofy cam cores.
Yeah... I have 1 UGL cam left for my engine
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Re: SB Mopar Race Block
[Re: Stroker Scamp]
#1342784
11/29/12 01:23 AM
11/29/12 01:23 AM
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Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt
master
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master
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
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Not super common, I have a 55mm one i would sell. I think they get around 475 for a new one ground.
Brett Miller W9 cnc'd heads
STR Chassis fabraction
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Re: SB Mopar Race Block
[Re: Stroker Scamp]
#1342785
11/29/12 01:24 AM
11/29/12 01:24 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Quote:
Quote:
Fyi restoration blocks are R blocks also....there showing as of last week 12 48* blocks in stock and the price is 2400+ which is good.
A Resto Block is a 59 degree wet sump 9.60 R3 with the extra head bolt bosses machined off and the lifter valley opened up. If you want to run a conventional roller lifter like a Crane Ultra Pro it takes a lot of carefull work with a die grinder and sonic checker,but there are some drop in lifters made by Comp. 48* is a much better set up with an R3, its just a pain to locate the goofy cam cores.
Yeah... I have 1 UGL cam left for my engine
so are the cams for this block hard to get ahold of? expensive too?
My understanding is they are pretty hard to find and
yes they are pricey and then you still need to have
it ground... all in all it can be $600 - $700 for
a cam
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Re: SB Mopar Race Block
[Re: MR_P_BODY]
#1342786
11/29/12 01:29 AM
11/29/12 01:29 AM
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Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms
Mr Wizzard
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Mr Wizzard
Joined: Jan 2003
Posts: 42,714
Spokane Washington
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Quote:
A Resto Block is a 59 degree wet sump 9.60 R3 with the extra head bolt bosses machined off and the lifter valley opened up. If you want to run a conventional roller lifter like a Crane Ultra Pro it takes a lot of carefull work with a die grinder and sonic checker,but there are some drop in lifters made by Comp. 48* is a much better set up with an R3, its just a pain to locate the goofy cam cores.
Ryan J and possibly others have a CNC program to cut the lifter boss clearances. Here's my resto block that he did.
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Re: SB Mopar Race Block
[Re: ScottSmith_Harms]
#1342787
11/29/12 01:38 AM
11/29/12 01:38 AM
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Joined: Nov 2004
Posts: 3,518
pacific northwest
Stroker Scamp
OP
master
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OP
master
Joined: Nov 2004
Posts: 3,518
pacific northwest
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are there roller lifters that will fit this block with 6 head bolt configuration?
footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip
73 Duster 340 street strip 12.79 @ 105
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Re: SB Mopar Race Block
[Re: Stroker Scamp]
#1342788
11/29/12 05:39 AM
11/29/12 05:39 AM
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Joined: Feb 2005
Posts: 982
western pennsylvania
b1dartsport
super stock
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super stock
Joined: Feb 2005
Posts: 982
western pennsylvania
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Quote:
are there roller lifters that will fit this block with 6 head bolt configuration?
Mopar does not offer a 59* 6 bolt head block. On a 48* motor the lifter bore is moved towards the center of the lifter valley giving clearance for the extra inside bolt or stud mountings. If you had 6 bolts on a 59* head there would be no room for a roller lifter unless you maybe used a Jesel key way lifter with no tie bar,but I'm not sure if there would even be enough room for the intake push rod on any W type offset rocker setup. The pushrod is on an angle which would probably hit the extra bolt boss.
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Re: SB Mopar Race Block
[Re: Stroker Scamp]
#1342790
11/29/12 06:52 AM
11/29/12 06:52 AM
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Joined: Feb 2005
Posts: 982
western pennsylvania
b1dartsport
super stock
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super stock
Joined: Feb 2005
Posts: 982
western pennsylvania
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Quote:
are there roller lifters that will fit this block with 6 head bolt configuration?
Sorry, if you were asking about the 48* block there are plenty of roller lifters out there that fit. If I remember correctly the R3 lifter bore is .400 taller than a stock block, so you would either have to machine the bore down or buy a taller lifter.
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Re: SB Mopar Race Block
[Re: fishy340]
#1342793
11/29/12 05:57 PM
11/29/12 05:57 PM
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Joined: Feb 2005
Posts: 982
western pennsylvania
b1dartsport
super stock
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super stock
Joined: Feb 2005
Posts: 982
western pennsylvania
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Quote:
I agree ALL 59* stuff needs that modification to use roller lifter,also my siamese 59* resto has the extra bolt holes for the heads and none were grinded off....i like that being the indy head can use the same amnt of head studs as a w7,8 and w9 head
Thanks for the Info. I was not aware that the *59 siamese Resto Block still retained the 6 bolt setup. I guess with no water jacket between the cylinder bores there is enough room to grind for more clearance without hitting water.
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Re: SB Mopar Race Block
[Re: dvw]
#1342797
11/30/12 10:31 AM
11/30/12 10:31 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
For whats its worth I have an early 59 degree 2 bolt non siamese R-3 block. It had no oil return holes in the lifter valley, the upper bolt holes for the timing chain cover were in the low deck position, and the counter weights for a stock 340 crank wouldn't clear the main webs without some grinding. Check everything before you start.
Doug.
I had to grind in that area also on my R3 block...
plus it needed the cam tunnel bored as well as the
mains
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Re: SB Mopar Race Block
[Re: Stroker Scamp]
#1342798
12/01/12 07:20 PM
12/01/12 07:20 PM
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Joined: Jun 2010
Posts: 3,112
LONG ISLAND
fishy340
master
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master
Joined: Jun 2010
Posts: 3,112
LONG ISLAND
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Quote:
PN# on the block is a P5153477-340
PN# on the box is a P4876673AD (not sure if the
box is original to the block)
I searched a bit with the casting# but no luck
just trying to find out if I do have a 48*,4 bolt 9.6deck,siamese bore, dry sump block?
any help?
I JUST GOT THE SAME BLOCK TODAY BRANDY NEW, PART# 4876673AD..it is a 48* talldeck siamese block,that has standard oiling not dry sump,you CAN use standard cam in this block, doesnt need to be 55mm or 60mm ur choice if u want one,it also has motor mounts ears. 
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Re: SB Mopar Race Block
[Re: fishy340]
#1342799
12/02/12 02:37 AM
12/02/12 02:37 AM
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Joined: Feb 2005
Posts: 982
western pennsylvania
b1dartsport
super stock
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super stock
Joined: Feb 2005
Posts: 982
western pennsylvania
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Quote:
Quote:
PN# on the block is a P5153477-340
PN# on the box is a P4876673AD (not sure if the
box is original to the block)
I searched a bit with the casting# but no luck
just trying to find out if I do have a 48*,4 bolt 9.6deck,siamese bore, dry sump block?
any help?
I JUST GOT THE SAME BLOCK TODAY BRANDY NEW, PART# 4876673AD..it is a 48* talldeck siamese block,that has standard oiling not dry sump,you CAN use standard cam in this block, doesnt need to be 55mm or 60mm ur choice if u want one,it also has motor mounts ears.
That block does not take a "standard" cam. It still uses a UGL core. The difference is some of the early iron blocks and all of the aluminum blocks used 50mm and 60mm roller bearings, this one uses babbit bearings. The last I heard Bullet cams still carried some UGL babbit cores. The part# for the roller cam babbit UGL core is P4876633 and the part# for the solid lifter version is P4876634. The part# for the bearings for either cam is P4876372.
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Re: SB Mopar Race Block
[Re: b1dartsport]
#1342801
12/02/12 10:00 AM
12/02/12 10:00 AM
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Joined: Jun 2010
Posts: 3,112
LONG ISLAND
fishy340
master
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master
Joined: Jun 2010
Posts: 3,112
LONG ISLAND
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Quote:
Quote:
Quote:
PN# on the block is a P5153477-340
PN# on the box is a P4876673AD (not sure if the
box is original to the block)
I searched a bit with the casting# but no luck
just trying to find out if I do have a 48*,4 bolt 9.6deck,siamese bore, dry sump block?
any help?
I JUST GOT THE SAME BLOCK TODAY BRANDY NEW, PART# 4876673AD..it is a 48* talldeck siamese block,that has standard oiling not dry sump,you CAN use standard cam in this block, doesnt need to be 55mm or 60mm ur choice if u want one,it also has motor mounts ears.
That block does not take a "standard" cam. It still uses a UGL core. The difference is some of the early iron blocks and all of the aluminum blocks used 50mm and 60mm roller bearings, this one uses babbit bearings. The last I heard Bullet cams still carried some UGL babbit cores. The part# for the roller cam babbit UGL core is P4876633 and the part# for the solid lifter version is P4876634. The part# for the bearings for either cam is P4876372.
would you like to make a small wager that the #1 note ur reading dont hold water? my friend has a 482ci same exact block and he didnt use a ugl cam his is from bullet...its the choice of me if i want to machine it for 50mm 55mm or 60mm..Ryan ordered the cam from bullet for my friends motor  dont believe mp notes as they say you can't use roller lifters in a 59* block.
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Re: SB Mopar Race Block
[Re: fishy340]
#1342802
12/02/12 03:38 PM
12/02/12 03:38 PM
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Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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Some things I would like to clarify. And I don't know where things took the wrong turn. Maybe with the guy who gave the information to print the description in the Mopar catologue.
There is nothing that makes a block dry sump only. The difference is internal pump or not. Some early blocks you could simply drill for internal oil pump and use the factory oil filter location. Some lightning programs took the filter location off the block. But, you can still run an external wet sump pump. I know of no block that can not be made internal with some drilling and a rear cap for the internal pump.
R3 blocks have the lifter valley closed in. This allows you to drill your own drains the size you want and where you want.
Kent Ritter has 60 mm cam cores and cams for these blocks among other things. So this stuff is still around.
R3 as all R blocks are RACE blocks. They are not ship it to the house and start assembling blocks. They are not take to the machine shop have bored and decked and start assmebling blocks. And they are not for the guy who is not willing to do a little home work and willing to self engineer their combo. I have done several of these and had to figure quite a few things out and ask some people some questions.
I would say just PM me with your questions. But, I have had three of these for sale over the years and got asked more than my fair share of questions on how to build these when guys where determined to spend twice the money on lesser parts than what I was selling already done and proven. So go ahead and ask but, depending on my mood and how busy I am what your answer may be. LOL
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: SB Mopar Race Block
[Re: fishy340]
#1342803
12/02/12 06:20 PM
12/02/12 06:20 PM
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Joined: Feb 2005
Posts: 982
western pennsylvania
b1dartsport
super stock
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super stock
Joined: Feb 2005
Posts: 982
western pennsylvania
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Quote:
Quote:
Quote:
Quote:
PN# on the block is a P5153477-340
PN# on the box is a P4876673AD (not sure if the
box is original to the block)
I searched a bit with the casting# but no luck
just trying to find out if I do have a 48*,4 bolt 9.6deck,siamese bore, dry sump block?
any help?
I JUST GOT THE SAME BLOCK TODAY BRANDY NEW, PART# 4876673AD..it is a 48* talldeck siamese block,that has standard oiling not dry sump,you CAN use standard cam in this block, doesnt need to be 55mm or 60mm ur choice if u want one,it also has motor mounts ears.
That block does not take a "standard" cam. It still uses a UGL core. The difference is some of the early iron blocks and all of the aluminum blocks used 50mm and 60mm roller bearings, this one uses babbit bearings. The last I heard Bullet cams still carried some UGL babbit cores. The part# for the roller cam babbit UGL core is P4876633 and the part# for the solid lifter version is P4876634. The part# for the bearings for either cam is P4876372.
would you like to make a small wager that the #1 note ur reading dont hold water? my friend has a 482ci same exact block and he didnt use a ugl cam his is from bullet...its the choice of me if i want to machine it for 50mm 55mm or 60mm..Ryan ordered the cam from bullet for my friends motor dont believe mp notes as they say you can't use roller lifters in a 59* block.
I posted this because someone I know bought one and no standard cam would fit. It took my friend 3 months to find a Ugl core. Not sure if Ma Mopar changed this block since then. I was just trying to help people not make the same mistakes I and my friends have made. I wanted to build an engine with this block but used a Resto instead because of this. Good luck with your build,I hope everything works out for you.
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Re: SB Mopar Race Block
[Re: b1dartsport]
#1342804
12/02/12 07:00 PM
12/02/12 07:00 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
master
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master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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Quote:
Quote:
Fyi restoration blocks are R blocks also....there showing as of last week 12 48* blocks in stock and the price is 2400+ which is good.
A Resto Block is a 59 degree wet sump 9.60 R3 with the extra head bolt bosses machined off and the lifter valley opened up. If you want to run a conventional roller lifter like a Crane Ultra Pro it takes a lot of carefull work with a die grinder and sonic checker,but there are some drop in lifters made by Comp. 48* is a much better set up with an R3, its just a pain to locate the goofy cam cores.
Does the factory roller lifter from a Magnum engine fit an unmachined lifter valley in a R3?
I was told it does  Thx Matt
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Re: SB Mopar Race Block
[Re: fishy340]
#1342806
12/02/12 10:07 PM
12/02/12 10:07 PM
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Joined: Feb 2005
Posts: 982
western pennsylvania
b1dartsport
super stock
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super stock
Joined: Feb 2005
Posts: 982
western pennsylvania
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Quote:
B1 ur 100% right they change and say stuff in the parts book that sometimes is kinda stupid....i learned from my parts man who's been w them for 30+ yrs...and in no way was or am i trying to be a butt...i post to help also..and to get help.ps i made some expensive booboo's by not asking lol
No offence taken, just trying to help,don't like to see people lose their hard earned money on mistakes that I made. Let us know how your build goes, I may still be intersted in building a 48* motor with a big stroke Bloomer crank.
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Re: SB Mopar Race Block
[Re: b1dartsport]
#1342807
12/02/12 10:11 PM
12/02/12 10:11 PM
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Joined: Nov 2004
Posts: 3,518
pacific northwest
Stroker Scamp
OP
master
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OP
master
Joined: Nov 2004
Posts: 3,518
pacific northwest
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will micing the cam bore tell you what size cam? or does the cam bore need machining too?
footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip
73 Duster 340 street strip 12.79 @ 105
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Re: SB Mopar Race Block
[Re: Stroker Scamp]
#1342809
12/02/12 11:08 PM
12/02/12 11:08 PM
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Joined: Feb 2005
Posts: 982
western pennsylvania
b1dartsport
super stock
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super stock
Joined: Feb 2005
Posts: 982
western pennsylvania
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Quote:
will micing the cam bore tell you what size cam? or does the cam bore need machining too?
1st row is Stock camshaft bearing bore diameters.Second row is with the bearing in:
#1. 2.1295" / 2.1305" #1. 2.000" / 2.001"
#2. 2.1135" / 2.1145" #2. 1.984" / 1.985"
#3. 2.0985" / 2.0995" #3. 1.969" / 1.970"
#4. 2.0825" / 2.0835" #4 1.953" / 1.954"
#5. 1.6920" / 1.6930" #5. 1.5625" / 1.5635"
You can use a Bore gauge, inside mics or a snap gauge & mike.
These are smallest diameters followed by largest allowable.
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Re: SB Mopar Race Block
[Re: fishy340]
#1342810
12/03/12 01:48 AM
12/03/12 01:48 AM
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Joined: Jan 2010
Posts: 84
Minnesota
Coldart
member
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member
Joined: Jan 2010
Posts: 84
Minnesota
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Quote:
Gotta of a deal on 48*r1a shortdeck just waiting for a home
PM Sent
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Re: SB Mopar Race Block
[Re: b1dartsport]
#1342811
12/04/12 12:02 AM
12/04/12 12:02 AM
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Joined: Jan 2003
Posts: 2,155
Tucson, Arizona
clonestocker
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,155
Tucson, Arizona
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I've got a Comp Cam that's 48*. It looks to have stock bearing sizes. This was a quick hit with some calipers. 1.992/1.98/1.967/1.950/1.560. Which type of block does this cam belong to. Was there ever a reference to an Arrington type block or Cam? thx matt
[img] [/img]
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Re: SB Mopar Race Block
[Re: clonestocker]
#1342812
12/09/12 12:29 AM
12/09/12 12:29 AM
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Joined: Jan 2003
Posts: 426
Cairns Queensland Australia. T...
vc360
mopar
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mopar
Joined: Jan 2003
Posts: 426
Cairns Queensland Australia. T...
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Quote:
I've got a Comp Cam that's 48*. It looks to have stock bearing sizes. This was a quick hit with some calipers. 1.992/1.98/1.967/1.950/1.560. Which type of block does this cam belong to. Was there ever a reference to an Arrington type block or Cam? thx matt
Matt I think that is for a 48 deg "R" or "R1A" that came with std oem size journals but with lobes spaced to suit 48 deg. What are the specs? is it a core? I am interested if it is. PM if you want.
Thanks Darren
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