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Aftermarket RB Block #2381007
10/03/17 12:38 AM
10/03/17 12:38 AM
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Posts: 1,278
Mission BC
10sec440 Offline OP
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Hello,has anyone heard if there will be an aftermarket RB iron block made again in the near future? The Muscle Motors one looked promising but I've heard they went out of business and were bought out. The new people that took it over have a facebook page, and are taking money with an 8 week delivery time frame. Under the circumstances I see that as a gamble.I guess I could use Indy but they are $3800+ and you have to pay extra for billet caps and finish machining from what I understand on their website. I understand the days of a $2600. RB is long gone, but I find it hard to believe there is no market for something half affordable to the average racer. Thanks in advance.

Re: Aftermarket RB Block [Re: 10sec440] #2381039
10/03/17 01:37 AM
10/03/17 01:37 AM

S
Superfreak
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Superfreak
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It's going to take a lot of looking, plus with the Canadian peso you will pay dearly if can find one.

Re: Aftermarket RB Block [Re: 10sec440] #2381079
10/03/17 03:28 AM
10/03/17 03:28 AM
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Oregon
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AndyF Offline
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If it was me I'd call the guys at Best Machine and see what they tell you to do.

Re: Aftermarket RB Block [Re: AndyF] #2381082
10/03/17 03:30 AM
10/03/17 03:30 AM
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Wichita
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GY3 Offline
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Have you checked with Keith Black? shocked


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Aftermarket RB Block [Re: 10sec440] #2381089
10/03/17 03:48 AM
10/03/17 03:48 AM
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Posts: 1,278
Mission BC
10sec440 Offline OP
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I have the peso's covered, but it seems they are made of unobtainium!

Re: Aftermarket RB Block [Re: 10sec440] #2381093
10/03/17 04:53 AM
10/03/17 04:53 AM
Joined: Mar 2009
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Sydney,Australia
tex013 Offline
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Yeah a lot of us feel that pain
Funny but a mate is working up to buy a new block/short motor. A 409W chev aluminium block .
Huge demand for those 409s i guess
Dang canadian peso - we have aussie peso's . Don't get me started on freight

Tex


New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: Aftermarket RB Block [Re: 10sec440] #2381266
10/03/17 02:43 PM
10/03/17 02:43 PM
Joined: Dec 2005
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Fulton County, PA
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CMcAllister Offline
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Tony is making it tough to try to do anything serious and remain loyal at the same time. Aftermarket is not picking up the slack.


If the results don't match the theory, change the theory.
Re: Aftermarket RB Block [Re: CMcAllister] #2381294
10/03/17 04:24 PM
10/03/17 04:24 PM
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NW Indiana
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fbs63 Offline
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Indy's blocks are 5k now. You can call Chicago Connection for an iron block. They are a distributor of the block MM was selling.

Re: Aftermarket RB Block [Re: fbs63] #2381436
10/03/17 09:29 PM
10/03/17 09:29 PM
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Bend,OR USA
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Cab_Burge Offline
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Originally Posted By fbs63
. You can call Chicago Connection for an iron block. They are a distributor of the block MM was selling.

I ordered a compact graphite iron 4.500 bore wedge block from Billy Mitchells (SP?) company when they owned or where in partners with World Products, I waited a long time before they cancelled making them due to not having enough orders.
I had placed a order with Dave Koffel for a Koleno high nickel cast grey iron block and ended up cancelling it when he called to say it was ready to ship, stupid me realcrazy One in the hand is way better than one on order up
I placed another order with Dave later two years later and got it several years later up Dave had said that casting iron Mopar race blocks was a black art according to what he had seen and heard while working at Chrysler and seen later on both the Koleno and World iron blocks work
I have talk to the guys at Chicago Connection for another iron block but I think I will wait until they have several bunches machined and in use before stepping forward on them work twocents

Last edited by Cab_Burge; 10/03/17 09:31 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Aftermarket RB Block [Re: Cab_Burge] #2381533
10/04/17 12:20 AM
10/04/17 12:20 AM
Joined: Nov 2003
Posts: 1,825
NW Indiana
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fbs63 Offline
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The casting problem has always been they want to use one casting for a Hemi or a wedge block. You would think they would have figured out by now they need two different patterns and core molds.

Re: Aftermarket RB Block [Re: 10sec440] #2381596
10/04/17 03:00 AM
10/04/17 03:00 AM
Joined: Jan 2003
Posts: 4,267
Morrow, OH
markz528 Offline
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Morrow, OH
I have a (The Block) that I bought from Muscle Motors. Although MM was involved in testing the blocks, they were not making them. The sourcing of these blocks has not changed. They are available from several vendors.


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Aftermarket RB Block [Re: markz528] #2381600
10/04/17 03:18 AM
10/04/17 03:18 AM
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Bend,OR USA
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Cab_Burge Offline
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Have you used it yet? If so how was it and how much extra machine work was needed to make it useable for your deal?
Last thing is it a RB or B wedge or a Hemi block and what size bore was it to start with?
I'm still in the market for another good cast iron, not aluminum, race block work
Thanks in advance for your help on this up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Aftermarket RB Block [Re: Cab_Burge] #2381875
10/04/17 05:35 PM
10/04/17 05:35 PM
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Morrow, OH
markz528 Offline
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Originally Posted By Cab_Burge
Have you used it yet? If so how was it and how much extra machine work was needed to make it useable for your deal?
Last thing is it a RB or B wedge or a Hemi block and what size bore was it to start with?
I'm still in the market for another good cast iron, not aluminum, race block work
Thanks in advance for your help on this up


Its a RB 505. I went 0.030 over as it will be a street engine.

Can't comment on the machining as I bought it as an assembled shortblock. I hope to get the motor fully assembled and on the dyno by the end of the year or very early next year.


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Aftermarket RB Block [Re: markz528] #2381890
10/04/17 06:09 PM
10/04/17 06:09 PM
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Bend,OR USA
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Thanks for the help up
I'm going to assume that it is bored to 4.350 with a 4.250 stroke, is that correct?

Last edited by Cab_Burge; 10/04/17 06:10 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Aftermarket RB Block [Re: markz528] #2382200
10/05/17 12:55 AM
10/05/17 12:55 AM
Joined: Jan 2003
Posts: 1,278
Mission BC
10sec440 Offline OP
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Originally Posted By markz528
I have a (The Block) that I bought from Muscle Motors. Although MM was involved in testing the blocks, they were not making them. The sourcing of these blocks has not changed. They are available from several vendors.


Which vendors? Thanks.

Re: Aftermarket RB Block [Re: Cab_Burge] #2382401
10/05/17 01:53 PM
10/05/17 01:53 PM
Joined: Jan 2003
Posts: 4,267
Morrow, OH
markz528 Offline
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Originally Posted By Cab_Burge
Thanks for the help up
I'm going to assume that it is bored to 4.350 with a 4.250 stroke, is that correct?


I didn't put it in the post cause I didn't want to guess but quite sure that is correct. It is a 4.25 stroke - stock bore 0.030 over.


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Aftermarket RB Block [Re: 10sec440] #2382403
10/05/17 01:54 PM
10/05/17 01:54 PM
Joined: Jan 2003
Posts: 4,267
Morrow, OH
markz528 Offline
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Morrow, OH
Originally Posted By 10sec440
Originally Posted By markz528
I have a (The Block) that I bought from Muscle Motors. Although MM was involved in testing the blocks, they were not making them. The sourcing of these blocks has not changed. They are available from several vendors.


Which vendors? Thanks.


Don't quite remember but if you search the subject here on Moparts they have been listed.

I do believe Chicago Connection was one.


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Aftermarket RB Block [Re: 10sec440] #2382405
10/05/17 02:03 PM
10/05/17 02:03 PM
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Posts: 10,009
MN
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JERICOGTX Offline
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Just curious, as to why bother with a iron block when aluminum blocks are available as a option? I can see if you are running a class that requires iron.


69 GTX 68 Road Runner
Re: Aftermarket RB Block [Re: JERICOGTX] #2382446
10/05/17 02:53 PM
10/05/17 02:53 PM
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Bend,OR USA
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Cab_Burge Offline
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Aluminum blocks do not keep the cylinder as round as a iron block will when running shruggy Hence they make less HP N/A or with a power adder than a cast grey iron block will, the Compact Graphite iron blocks are even better than cast grey iron thumbs scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Aftermarket RB Block [Re: 10sec440] #2382451
10/05/17 02:57 PM
10/05/17 02:57 PM
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Posts: 10,009
MN
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JERICOGTX Offline
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You could always HardBlock the aluminum block to keep it from moving around. I know people that have done it.


69 GTX 68 Road Runner
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