SVO BLOCK?!!?
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Old October 11th, 2012, 01:44 AM   #1
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SVO BLOCK?!!?


ok soo.. i want everyone to hit in on this.. 1984 2.3 SVO block... whats it worth and is it ANY stronger then a normal 2.3 block (say for my 1979 2.3 N/A block) because I'm trying to get the stronger f%$*ing block i possible can without spending over 800$ for it.. so 84 SVO block.. whats it worth and is it any stronger?
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Old October 11th, 2012, 03:03 AM   #2
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The short answer is no. A few years back, I was involved in some testing that involved motor research. The lab I was involved with, was staffed with a handful of engineers and researchers, one formerly worked as a tribologist and manufacturing engineer for several large auto makers, Ford being one of them and was also involved with other various engine manufacturing plants.


On occasion we would go to lunch together. I talked with him at length about casting processes and I learned a bit from him. I asked him the same question that a lot of folks on the internet have, regarding material changes being selectively added or deleted from various casting processes. He said the cost of continually changing material composition to suit small changes in a production environment would be absurd, cost prohibitive and highly unnecessary, adding to delays in production and set-up. He was also very clear about foundry work being a constantly evolving process. It is.


Someone on the internet, quite a few years back, began propagating the rumor, that turbo blocks were built in a special production facility, which supposedly was able to re-fine the crystalline structure of their iron “at will” with the further addition of nickel and a lower balance of silica. These turned out to be nothing more than rumors, likely propagated by people wanting to artificially stimulate prices or something of that nature. It is a rumor that has persisted ever since, despite many efforts to bring the truth forward. In general, newer castings are usually much better, as all sorts of technologies and control measures have been added over the years, to the process of iron casting. Subsequently manufactures have been able to keep vehicle weights in balance with ever increasing items added to vehicles.


The questions that people should be asking are;

What are the areas I need to be concerned with and why?

What is an engine block truss or girdle and where can I get one?

Why should I be concerned with crankshaft flex?

What did Jack Roush and Dan Esslinger do to the center main bearings, to keep them from failing in their Trans Am racing engines?
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Old October 11th, 2012, 04:56 AM   #3
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WELL^^ then so my 79 block is garbage.... and 88 turbo coupes are better? ive heard quite a few thigns against that where in some cases people going only 0.10 over and hitting water jackets. as well tell me about the other problems i could have (ones you listed) and how to fix them.
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Old October 11th, 2012, 09:37 AM   #4
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And what about the tall deck SVO block?
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Old October 11th, 2012, 09:39 AM   #5
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did the tall deck ever come in an actually SVO or was it some weird aftermarket shit
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Old October 11th, 2012, 11:19 AM   #6
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Originally Posted by 70-yenko-nova View Post
WELL^^ then so my 79 block is garbage.... and 88 turbo coupes are better? ive heard quite a few thigns against that where in some cases people going only 0.10 over and hitting water jackets. as well tell me about the other problems i could have (ones you listed) and how to fix them.
I ran ministocks with guys that had gone .060 over, they got hot quick, but they never hit water jackets. Your 79 block is the same quality as the newer motors, the only difference is the pistons between yours and an 88 T/C block.
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Old October 11th, 2012, 11:23 AM   #7
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im getting CP's but idk if yall say so.. i might just have it taken out and sonic checked to see if its worth it.
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Old October 11th, 2012, 11:34 AM   #8
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Thats always the best thing to do, if you sonic check the walls you will know how thick they are.
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Old October 11th, 2012, 11:37 AM   #9
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that just costs quite a bit of time and money for just a lucky guess.
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Old October 11th, 2012, 11:52 AM   #10
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People are pounding fear into 2.3 owners, i will tell you now, look at the other thread on this, i have had nothing but good luck with these engines.
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Old October 11th, 2012, 12:01 PM   #11
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i just responded to your post in my other thread... ill sonic my 79 block.. what are some good numbers to reference off of? and some bad ones so i know what to avoid.
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Old October 11th, 2012, 01:58 PM   #12
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WELL^^ then so my 79 block is garbage....

Not at all, I'm sure if it is well prepped with good supporting mods, it will take anything we throw at it.


...and 88 turbo coupes are better?
Incrementally, but it truly would not concern me.

People are pounding fear into 2.3 owners, i will tell you now, look at the other thread on this, i have had nothing but good luck with these engines.

From my own experience, Michael is spot on with this statement. Sure, there are production anomalies in any high volume product, but after all the years I spent machining engines, I never came across one, regarding the 2.3.

If you are highly concerned about block strength, PM Arrumel about an SVO tall deck block. To answer your previous question, these were not used in any production cars.
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Old October 11th, 2012, 02:04 PM   #13
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I don't believe there was ever a tall deck 2.3 block in any production cars, but was instead available from ford racing, and that's the one that was said to have the special high nickel casting and advertised 15.7mm (?) to the deck height.

M-6010-B230 "...15.7mm added to deck height..."
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Old October 11th, 2012, 02:20 PM   #14
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The 2.3 is not a bad engine. There are casting differences year to year with the E8 castings having slightly thinner castings. You should head over to turboford.org and read as much as you can. Those guys live and breath the 2.3 and will shoot you straight.
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Old October 11th, 2012, 02:32 PM   #15
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I'm also with the TurboFord group as well as the Stinger group. The 2.3 is a great little motor, and you can do some really cool and impressive things with them. I would personally go for either the Tall Deck Ford Motorsports M-6010-B230 block or maybe an Esslinger block. OHC230 also had found another sturdy block option, I believe it was the LRG-425 or something like that.

As it is though, I'm poor as hell and can't afford to do much of anything, so I'm looking at working with an '88 turbocoupe block and possibly using block filler in it if I ever manage to get the money into it to make the kind of power where I'll be worried about blowing a hole in my block.
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Old October 11th, 2012, 05:59 PM   #16
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Turbo blocks will also have been tapped for the oil and cooling to the turbo, right?
I haven't been mic'ing my blocks, but that's the only difference I've noticed...
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Old October 12th, 2012, 12:55 AM   #17
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see im going to use a mid to late 80's block just so i feel safer but if i do get my 79 done also do i have any numbers i can go off so i can know if im safe for 450ish hp and if anyone can find the M-6010-B230 blocks LET ME KNOW ASAP please.
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Old October 13th, 2012, 04:50 PM   #18
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I can get you one of those SVO blocks for prob around $1000-1500
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Old October 13th, 2012, 05:46 PM   #19
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machined or standard bore...
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Old October 13th, 2012, 10:17 PM   #20
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Standard bore.

And I'll just leave this little gem here.

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