12mm x 8mm case savers

[pig-pen]

Hello. Quick question. And yes I did a search but found little.

Is it a worthwhile mod to use case savers in a 36hp case? It is all apart anyway and so now is the time.

Would I then use and 8mm OG VW studs? I have been told to steer clear of chromoly etc.
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1954 L227 Type 113
1964 L31 Type 265

[gimmesomeshelter]

I would argue that properly installed case savers are always a good idea.

As for 8mm studs, keep in mind that the selection is limited. I'm not sure if you can find any that will fit a 36HP case.

Cheers,

Paul
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"I would rather have questions that can't be answered than answers that can't be questioned."

Richard Feynman

[pig-pen]

Hmmm... ok gotcha.

So stick with 10mm OG studs, and fit 14mm case savers?
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1954 L227 Type 113
1964 L31 Type 265

[[email protected]]

There is a 10mm internal by 1/2 20 pitch external insert that is about the size of an 8mm x 12mm. I'm pretty sure Timesert makes it. Most Aircooled machine shops should have them, but let me know if you can't find them?

[txoval]

I did it for my 36hp rebuild...of course I over built most of my engine in anticipation of more boost from the Speedwell SC

[[email protected]]

I would definitely install the inserts as well. I just wouldn't use the 14mm external threaded ones.

[52 deelux]

Can you get 8mm case studs for 64mm stroke engines? If so where?
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52 BD Deluxe
57 Ghia golde
54 Ragtop

[[email protected]]

I'm would say you could get Raceware, or ARP to make you a set. The last I heard, a Raceware 10mm dual port 1600 set was around $250, but a custom set may be more. There are late dual port engines making 300+hp with stock German 10mm head studs, so I would think a standard 10mm 36hp head stud set would work for 99% of applications that could be created.

[pig-pen]

I have seen 8mm single port 1200cc studs advertised plenty of places... so these would fit right? same width engine etc.??? or have I got that horribly wrong?
_________________
1954 L227 Type 113
1964 L31 Type 265

[[email protected]]

1200 to me usually refers to a 40hp engine. I haven't taken apart any 36hp engines, but I know the 36hp, and 40hp are considerably different.

[Jacks]

I don't recall there being a problem with head studs pulling out of the cases on 36hp, even on hot rod builds back in the day (Okrasa, Judson, higher compression, big bore, dual carbs, etc). Of course, this was small potatoes compared to some of the fabulous builds folks are doing today. The only time I remember using inserts is when we were converting 36hp cases to be used as replacements for preA 356 engine cases. These inserts were very large od, as the studs were needed to be moved to a different location to fit 356 heads. IIRC, part of the steel insert was visible when the spigots were opened up to fit the 356 cyls. But that was a long time ago. It still begs the question. Has anyone seen a 36hp cyl stud pulled out of the case (barring Dan Hero over-torqueing the poor thing)? I have not.
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Jack Staggs
Actual name

[[email protected]]

I would consider the history of the engine. Was it ever overheated? It was quite common for me to see a H cased 1500/B cased 1600 single port, or an AE cased 1600 with 10mm studs into the case have issues. The 10mm studs didn't stretch too well if an engine was overly expanded due to an overheat, and usually damage the case threads. I'm for putting an insert in any engine I would build, but that's more from a late dual port/dual relief case stand point. Maybe 36hp's simply don't have pulled stud issues?

[alanhall]

Jack,
If converting a 36hp case for a pre-A motor the studs are in the same location if you have 2-piece case 356 heads, so no inserts required (or used on original 356 2-pc case motors). If you are trying to use a 36hp case with 3-pc case 356 heads then you would have to use some type of insert to increase the stud spacing and I am pretty sure you would be cutting into the insert when you increase the spigot size to even the 2-pc case 356 spigot size.

[52 deelux]

I would like to use 8mm studs in conjunction with 83mm cylinders on my 30(36)up build.
This would help limit the amount of material required to be removed from the cylinder fins.

..so this doesn't relate to stud pulling issues.
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52 BD Deluxe
57 Ghia golde
54 Ragtop

[AirCooledClassics]

I case saver my 36 big engine .My reason was to reduse the amount of mat cut off the 83mm barrel. Do not use the 8mm wurth serts. They will pull out! I simply used 8 by 12 case savers. I have the ww heads on my motor and studs were easy to come by .Mostly single port.
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2010 Bonneville record holder Type 2, 36hp
NHRA Divisional Sports Compact Champion
My You-tube video
http://www.youtube.com/watch?v=GJoq3MtsPmc

My National Dragster article
http://www.dragracecentral.com/DRCStory.asp?ID=231552

[[email protected]]

[AirCooledClassics]

Sorry. I can.t recall. I have a shop so studs are everywhere. I just remember it wasn't hard to match up. The center short stud had to be trimmed for the WW heads and tin mods though.On those I just used thick D/p washers and small 12mm nuts.
_________________
2010 Bonneville record holder Type 2, 36hp
NHRA Divisional Sports Compact Champion
My You-tube video
http://www.youtube.com/watch?v=GJoq3MtsPmc

My National Dragster article
http://www.dragracecentral.com/DRCStory.asp?ID=231552