fastfalcon_19
Well-known member
This has probably been discussed before, as i think ive seen it with my own eyes, but i just cant find the post, is there any possible way you can modify the beamers inline 6 head to fit our fords?
BMW?
- Thread starter fastfalcon_19
- Start date
I don't recall ever seeing a post for the BMW head.
However, MustangSix did find a way to install an Aussie Ford 250 alloy crossflow head onto an US 200 block.
The head design is similar in style to the Cleveland head for a V8, and flows significantly better than the log head. To retrofit the head, some water jacket holes in the head and block have to be plugged and some new ones opened, along with a 1/4-inch plated attached to the block for the head gasket to seal properly (The Aussie 250 crossflow head is wider than the US 200). The cam for the Aussie 250 has to be used, along with the intake and exhaust manifolds. The only problem encountered is the inability to use a stock distributor in the 200 block (the Aussie 250 block is several inches taller than the US 200 block) with a stock intake manifold. MustangSix made his own intake manifold that allowed a distributor to fit; this could also be accomplished by using a Megajolt, Megasquirt, or EDIS electronic ignition system with a dummy shaft to turn the oil pump. Estimated HP for this engine was around 175.
You can do a search on the forum for MustangSix, 200xflow, or Locost to read some of the posts on this engine. MustangSix did have a webpage on the Fordsix forum, but since the site was updated several months ago, the link is dead.
I've been debating doing this retrofit for sometime and have been gathering the bits and pieces necessary to do it. Parts are cheap, but shipping from Australia is expensive. I've spent more on shipping a part than the cost of the part itself.
Hope this helps.
However, MustangSix did find a way to install an Aussie Ford 250 alloy crossflow head onto an US 200 block.
The head design is similar in style to the Cleveland head for a V8, and flows significantly better than the log head. To retrofit the head, some water jacket holes in the head and block have to be plugged and some new ones opened, along with a 1/4-inch plated attached to the block for the head gasket to seal properly (The Aussie 250 crossflow head is wider than the US 200). The cam for the Aussie 250 has to be used, along with the intake and exhaust manifolds. The only problem encountered is the inability to use a stock distributor in the 200 block (the Aussie 250 block is several inches taller than the US 200 block) with a stock intake manifold. MustangSix made his own intake manifold that allowed a distributor to fit; this could also be accomplished by using a Megajolt, Megasquirt, or EDIS electronic ignition system with a dummy shaft to turn the oil pump. Estimated HP for this engine was around 175.
You can do a search on the forum for MustangSix, 200xflow, or Locost to read some of the posts on this engine. MustangSix did have a webpage on the Fordsix forum, but since the site was updated several months ago, the link is dead.
I've been debating doing this retrofit for sometime and have been gathering the bits and pieces necessary to do it. Parts are cheap, but shipping from Australia is expensive. I've spent more on shipping a part than the cost of the part itself.
Hope this helps.
8) the place to start with with the head gaskets, and see if they match up with cylinder bore spacing, and head bolt holes, width, etc. you will have to deal with changing coolant passages, any oil passages, push rod location, etc. you also have to look at the valve sequence as you may need a custom ground camshaft.
my advice would be to buy the new aluminum head from classicinlines as by the time you invest the needed money and time into converting the block and head to work with each other, and get the custom ground cam, pay for shipping, etc. you will have enough money invested to where you could have bought the aluminum head and manifold. remember that when jack did his head conversion, the aluminum head was not available. i would be willing to be that if jack were doing the same engine today he to would buy the aluminum head.
my advice would be to buy the new aluminum head from classicinlines as by the time you invest the needed money and time into converting the block and head to work with each other, and get the custom ground cam, pay for shipping, etc. you will have enough money invested to where you could have bought the aluminum head and manifold. remember that when jack did his head conversion, the aluminum head was not available. i would be willing to be that if jack were doing the same engine today he to would buy the aluminum head.
Even if the BMW bore spacing and bolt head pattern is the same as our six, the problem with the BMW head is that it's an overhead cam design. It would take quite a bit of machine work to install a timing belt onto the front of a US Ford six. You'd be better off buying and shipping an Aussie OHC 4.0L six over here.
The pieces needed for the 200xflow conversion from Australia are the alloy head, valve cover, stock cam, intake and exhaust manifold (the manifolds could be optional if you're good at fabricating). The rest of the parts needed for the conversion are sourced locally. If you consider that any used head and block needs machine work, that cost could be part of a normal rebuild. I just did a quick calculation on my cost of acquiring all of the pieces for the conversion (used alloy head, used alloy valve cover, used 2Bbl intake, new cam, new valve springs, new lifters, used header, and head gasket set) and it came up to less than $900US, shipping included (half of total cost).
I believe Jack just wanted to see if installing a crossflow alloy head onto a US 200 could be done, since he had the parts. He was successful.
Mike with Classic Inlines wanted to improve the performance of our sixes. He was also successful.
After all that I said above, I agree with rbohm; the best deal is to purchase the aluminum head from CI. I have one of these too.
The pieces needed for the 200xflow conversion from Australia are the alloy head, valve cover, stock cam, intake and exhaust manifold (the manifolds could be optional if you're good at fabricating). The rest of the parts needed for the conversion are sourced locally. If you consider that any used head and block needs machine work, that cost could be part of a normal rebuild. I just did a quick calculation on my cost of acquiring all of the pieces for the conversion (used alloy head, used alloy valve cover, used 2Bbl intake, new cam, new valve springs, new lifters, used header, and head gasket set) and it came up to less than $900US, shipping included (half of total cost).
I believe Jack just wanted to see if installing a crossflow alloy head onto a US 200 could be done, since he had the parts. He was successful.
Mike with Classic Inlines wanted to improve the performance of our sixes. He was also successful.
After all that I said above, I agree with rbohm; the best deal is to purchase the aluminum head from CI. I have one of these too.
fastfalcon_19
Well-known member
yeah, its not that i was going to try it, we just bought a 325i and it has an inline 6 so i just got to thinking thats all, i am definatly sticking to my 4 side draft carb idea!
I think It'd be a bit easier just to put the whole beemer engine and tranny in.
I cant find the info anymore but there used to be a company in Australia, I wanna say name was Kroagdahl?, who made a aluminum DOHC head that would fit our inline sixes. Used a dummy shaft to run the oil pump.
Even back when the exchange rate was very favorable to the USA I think the head was $2500.
Even back when the exchange rate was very favorable to the USA I think the head was $2500.
Krogdahl! Ive heard of them, never seen one, and they would frightfully expensive.
The OHC six that we have is a good thing and has some resmblance to the old six, so maybe a possibility.
Otherwise its a 250-2v or alloy classic inline Im afraid.
A7M
The OHC six that we have is a good thing and has some resmblance to the old six, so maybe a possibility.
Otherwise its a 250-2v or alloy classic inline Im afraid.
A7M
Similar threads
All Small Six
1966 200ci in Mustang, General advice needed
