Rags63
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Posts posted by Rags63
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OK here is a little up date I did decide to pull the heads. I am glad I did there is some nicks on the top of one piston you can see it in the picture. Now trying to figure out the next step. Hopefully I will be able to pull the value springs this weekend.
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I am going to order a valve spring compressor. Any suggestions on which to buy? Also where can I find the fitting to go into the spark plug for compressed air?
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18 hours ago, Nelson said:
I have an R2 which was modified with Chevy valves back in the 60’s. I probably won’t be able to help much as it’s been so long since I even looked at it. I remember the builder told me it had Chevy valves that needed to be modified for the Stude retainers and possibly shortened do to rocker stand height. I think the valve seals used were the Chevy o rings only. I remember the valves being close to two inch diameter. They did fit down a standard bore with the heads on. I wonder if you might be better off going with R3 valves which are readily available these days.
I like the vintage photos. Do you know the guy’s name in the photo? Was it Eastburn? Is there a B or A number stamped on the block around the distributor mounting surface or on the machined surface at the front of the block? Any interesting history with the engine?
There is a B 154 by the distributor. What dose the B stand for?
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1 hour ago, Nelson said:
Well I hope you get it going soon. I guess it’s going into the Avanti? Are you located n Southern California?
Now that you mention machining the head for the valve spring, I remember that being done also. The fellow that I got the heads from was actually an employee of Studebaker in South Bend.
It is going in to the avanti. I am in northern California. I am going to put all new seals and gaskets. Debating on doing head gaskets.
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I know that the value guides were shortened for chevy valves. Also the valves spring seats were machined for dual springs. Valve sizes are Intake 1.94 exhaust 1.625
The guy in the photo in my grandfather David Ragsdale. As for the A or B I will have to look. The engine was purchased from stu-v by my grandfather. I also found an old stu-v catalog.
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I have an r3 engine that was purchased from stu-v products co. With r2 heads machined by them as well. I am going through the engine and in need of some help finding parts. The one I am having a hard time with is valve seals. From what I have found the heads were reworked for chevy valves. Dose anyone know what chevy valves might have been used? With the engine out is there any thing I should look for?
Some pic of engine now and when it was new any help is greatly appreciated thanks
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I was going through some boxes over the weekend and found some emblems. I was wondering if you could buy these or if it was something my grand father had made. Here is a picture of them hopefully someone can help me out.
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On 7/5/2020 at 11:52 PM, 64Avanti said:
Can you post a picture showing the "Casting Number." Those heads have to be modified R2s. The intake manifold clearly doesn't have R3 size ports. We never had any finished R3 heads. When we purchased the parts from Paxton the heads were long gone.
Here are a picture of the head
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On 6/18/2020 at 1:46 PM, PackardV8 said:
Another likely possibility, since this engine was rebuilt by Stu-V, is that an original car blew its engine, had it replaced by something else, maybe from Paxton or Stu-V and the reusable parts were swept up into this build by Stu-V.
jack vines
As far as i know all is original except the engine and I am learning now that the rear end may be out of a defrent studebaker.
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I want to say thank you for all the input. I have a lot of work ahead of me to get this car back on the road. I will try and post some pic along the way. What are some important things to go over on a engine that has been siting for a while. I know I need to do valve cover gaskets and oil pan. When I do this is there any thing I should look for?
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46 minutes ago, 64studeavanti said:
Can you provide serial number of car? Do you have production order from the Studebaker museum?
Have the original purchase order from 1963 when my grandfather ordered the car. Its originally an r2 he ordered the 304 form stu-v in 74 along with intake and had head work done at the same time. Serial number is R4396
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10 hours ago, Luma said:
Rags63, No difference on the superchargers, but high output pulleys were available as an option. Some Bonneville cars had external coolers also.
One more favor if you can carefully take photos of 3810 underside of the base, I would greatly appreciate it. Also where are you located?
I was able to get the pics you were wanting
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4 hours ago, mfg said:
Rags63...If you ultimately decide to run the engine as an unsupercharged R4, a pair of brand new 500 CFM Edelbrocks might be a good idea. (electric choke on rear)
Your other carbs, although definitely valuable, are almost 60 years old....and old carbs can sometimes be a real challenge!
3 hours ago, PackardV8 said:Also, one could do as some others have done and build a twin supercharged R4.
jack vines
Mfg,The plan is to run it with the supercharger. With newer edelbrock would there be an issue with hood clearance?
Packardv8 ware would you fit the second supercharger? Its pretty packed in there as is.
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Luma, i will get those pics this evening. I am in California
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1 hour ago, 64studeavanti said:
If I decode the engine number correctly, the block is R3 assembled on 12/5/63. The head numbers seem correct for R3/R4. If it was up to me, I would attempt a full R3 restore and sell the R4 parts.
Is there any difference on the super charger from r2 to r3
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45 minutes ago, brad said:
The first carb shown is the front carb of the R4 setup. Notice the lack of idles screws. There was no idle circuit. The rear carburetor had them. When mounted, the primaries of the rear carb was located closest to the center of the manifold. The second Carburetor pictured is an R2 carb. The blue plastic brake bleeder fitting is not stock. It would be brass. and is the vacuum port for the distributor vacuum advance. A true R3 or R4 does not have a vacuum advance on the distributor.
Would the vacuum advance help or hurt in this situation? Now with the bundle of parts that I inherited. is an msd ignition but I don't know if it was bought for the avanti. It could of been for aother Vehicle my grandfather had.
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The casting numbers on the intake manifold are 1555811 i think is what is says i will post a pic of it. As for the heads they are on the motor. i will try and line up the intake manifold some time this week. Now on to the carbs 3810 is semi taken apart this is how I got it with many other parts I will post pics of whats there. 3725 dose not have that spring
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2 hours ago, mfg said:
This is very interesting!
(Your grandfather must have been quite a Stude enthusiast!).....It would be great if you could post any serial numbers you may find on the engine block...that would determine if the short block is an original R3. (Look for number on machined pad at top front of block.....also possible serial number near distributor hole.)
The machine work done on the heads is quite extensive...they probably 'flow' as good or better than original Studebaker Avanti R3 heads!
The cylinder head casting number,, located over the center exhaust port, would also be helpful information.
Best of luck with your VERY INTERESTING Avanti!!
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Casting number for the heads STU-V 1555479
Number on engine block is R3S M305
Would the dual carb setup be a good fit with all the head work done
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4 hours ago, PackardV8 said:
The carburetors are simple. 1964 304" R4 3810S(F), 3811S(R) CARTER AFB CK474
The heads and intake you haven't given us enough information. It's really difficult to do "r2 heads machine to r3 spec." Yes, R3 valves can be installed into R2 heads. No, R2 intake ports are not easily enlarged to match an R4 manifold. Yes, there have been single and dual port "R4" repop manifolds made to mate with standard port heads. Knowing exactly what you have would help those offering advice.
jack
How can I verify what head were used?
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Sorry for the lack of info here are some pics of the motor build sheet from 1974 and the intake. The intake was purchased in 74 I hope this helps
I'm the third generation generation to own this car just trying to put the puzzle back together thanks for all info
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Thank you
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I have inherited a 63 avanti r2 that my grandfather purchased new. From paper work that I have found i believe the motor is a r3 with r2 heads machine to r3 spec.
What I am trying to figure out is what carb set up to use on the r4 intake manifold. I have 3 carbs but don't know what is what all are avanti carbs with different numbers 3507s 3725s 3810s
Any help is much appreciated
Stu-v R3
in 1963-64 Avanti
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I received my valve spring compressor today. I was able to get the valves out I am still not sure what type of valve seals these are.Hopefully someone can help me out with this. Any thoughts on what to do with the piston that has the marks on top.