Early Al case intermediate shaft and end cover?

[kenikh]

Wayne Dempsey's book says the early Al case uses a different intermediate shaft and end cover than the mag cases and that you should not buy an Al case without these items. Anybody run into this problem? Would you buy an early Al case without these items and if so, what is the discount you would apply if offered such a case?

[Eric911S]

Kenikh: It is true that you should try to get the intermediate shaft and cover but it is not really necessary. I like the 68 cases the best since you can use the standard late style chain housings. You can modify the case to except the later intermediate shaft and use a later cover as well. Also you can bore the case to take the bearing shells like the later engines as well. Lastly you can weld up the stud holes and pull them over to install 100mm cylinders on the short 66mm crank to give you a killer cheater engine. One other thing is to weld on MFI pump mounts as well for the ultimate 906 style engine.Hope this answers your questions and no I don't own this engine anymore. I do have my last 68 case not bored, no shaft but a bit pricey. If you can find a early case for less than $1000 I would buy it, because as you know they don't make them anymore. Thanks Eric

[kenikh]

I've never heard of anyone creating a short stroke monster on these cases. I am intrigued! Have you put big pistons on an early case before?

[Cornpanzer]

I will have two early aluminum cases by the end of this week. I will sell one for $750 or trade for/towards a good Aluminum 7R case if anyone has one.

[kenikh]

Keep me posted.

I have heard rumors that ally 7R cases exist, but they are supposedly the rarest cases ever made. Has anyone ever seen one?

[roblav]

Thanks Eric,
I had never heard of using the 68 case like that. Even though it is mag? I have one sitting in the garage.

[Eric911S]

Hello: The early 68 cases were aluminum and are great. I love using these cases for big engines and small high rev engines. The aluminum cases that is a 7R is the early 3.0 turbo case and some of the special rsr cases. You can use these for your short stroke projects as well. The current engine I may build is a short stroke 2.7 with 66mm stroke and 93mm pistons. I saw one of these run a few years ago and it would outrun the 2.8rsr engine. The short stroke just jumps out of the corners so well and revs. If I was you I would bore the aluminum case you have for the larger cylinders. I have done this alot and they work great. Thanks Eric

[roblav]

Thanks Eric,

My '68 case here at the shop is magnesium. But I also have an early '66 car with the aluminum case (never been torn apart...). I'd like to build up a really nice engine with this case and car but am concerned about the strength of those old axle universal joints. But I do have all the parts to convert to CV joints... Like I said, I temporarily put the '70 2.2S engine in this car, but I still find the power lacking a bit. So I'll want to build up a really good engine over the winter.