Thread: One Way To Build A 12 Cylinder Ardun or not

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Originally Posted by Dave Severson

That is one double throw down super kewl scooter you found a pic of Uncle Bob!!!!! Some day I'm going to get caught up and start me a trike project with some sort of outlandish engine, the V-12 would sure do it!!!!!

how about a donovan 734 i know a guy that will sell one

Originally Posted by pat mccarthy

how about a donovan 734 i know a guy that will sell one

That would be way big fun, huh?????

Dave-Thanks, I'm thinking of using two six cylinder distributors with a common drive off of the cam.

Mike- Thanks, I will be luck to make it threw this one

Bob-Wow, never saw that before, thanks.

Pat- My theory is,If some is good, more is better, and too much is just enough

Here are some preliminary drawings on the heads.
Ken

looks good have to move the spark plug in front of the two valves .i like to see the intake runners lay out. are you going to tube the intake push rod and run it thru the port . you going with the t@D /jesel rocker stands type . i hope you do not mind here is one of my heads i had to show someone i have alot of time in them but nothing like you are doing

Pat-Nice head, you must have a lot of time in them.
I'm going to make it a swirl port design, so the intake runner will actually clear everything. Where it gets tricky is the location of the intake and exhaust valves. They swap positions depending on the location of the head studs so I can keep the runners close to the same. The cam grinder is going to love me The rocker stands are going to be a little different, I will show that next with the port design.
Ken

Originally Posted by Ken Thurm

Pat-Nice head, you must have a lot of time in them.
I'm going to make it a swirl port design, so the intake runner will actually clear everything. Where it gets tricky is the location of the intake and exhaust valves. They swap positions depending on the location of the head studs so I can keep the runners close to the same. The cam grinder is going to love me The rocker stands are going to be a little different, I will show that next with the port design.
Ken

about the cam are you going to make your new steel core for that .thank on the heads . i will have some time in the engine when done the block is just about done i hope to have the the two titanium crower rods or just may have some steel olivers rods made up some of the same stuff your doing i just did not have to make the heads

Pat-Yes it will be a roller, I think with all the angle's I'm dealing with it will help. I'm using Chrysler roller lifters, the diameter matches the lifter bore. Lucked out on that one
Ken

Originally Posted by pat mccarthy

looks good have to move the spark plug in front of the two valves .i like to see the intake runners lay out. are you going to tube the intake push rod and run it thru the port . you going with the t@D /jesel rocker stands type . i hope you do not mind here is one of my heads i had to show someone i have alot of time in them but nothing like you are doing

Is this the set you're giving me for Christmas this year, Pat???? Superflow should be there any day now to set up the new engine dyno I bought you for Christmas!!!!!!!

Originally Posted by Dave Severson

Is this the set you're giving me for Christmas this year, Pat???? Superflow should be there any day now to set up the new engine dyno I bought you for Christmas!!!!!!!

why have you been bad or good ? i know i have been good them are the heads for the 734

Certainly is going to be an interesting engine Ken! The mix of old and new technology is always challenging, but your project is way beyond that!!! I did have to uncover my Ford V-10 and take a good long look at it the other day.... Just haven't came up with the right home for it yet.


I'm really looking forward to see the work continue on your V-12, it's going to be a really unique centerpiece for a project car!!!!

Ken. I like the drawings of the new heads. Want to see more of spark plug placement and where the cut from upper to lower is placed.

Pat. those heads look great.
BradC

BradC- I will post this this week so you can see that.
Ken

Here is the spark plug location and the intake port.
Ken

Thanks Ken, Can't wait till you've CNC them and see the finish pieces. How are you going to seal the 2 halves together.
BradC

BradC-I'm not sure we are going to make them out of billet. I have been talking to a few people that may be able to cast them using some low cost tooling.
Here is the latest, they are almost done. Not the ideal Port configuration but snaking around everything didn't leave much room.
Ken