V12 LS1 Build
Thread Starter
Staging Lane
Joined: Apr 2013
Posts: 53
Likes: 0
From: Seattle, Washington
No different than the 8, but with the added displacement, the throttle boddy becomes undersized
It will be fine up to a certain performance level. We understand that it's not a perfect firing order, but for this we don't care. Half the reason is we want to hear what it would sound like. We will find out a lot from this. This design is trial by fire.
(The suburban and the aircraft engine all had billet cranks of different designs. This is a test to try and cut down on production costs.)
We decided to go with a v12 because it is more practical. It's only 8.8 inches longer than a stock motor, so you can fit it in a variety of vehicles which could be street legal (or not 
). It is also at 8.9L, which is plenty enough displacement for all kinds of things.
Of course we are surfacing the block and heads.
Yep.
We plan to start showing it once we get it running.
It fits into a harley engine bay just nicely
What would you do for compression?
It's not a matter of the crank balance, it's that the firing order isn't evened out across the block. The project is awesome, but I'm worried it will shake itself apart without either balancing shafts or a custom crank. Do you know how many miles are on teh Suburban engine now?
And the 90-degree bank angle is fine for a V12. The angle should be some multiple of 360/# of cylinders. Most V12s are 60 degrees, but 90 works too (as long as the crank is designed correctly).
And the 90-degree bank angle is fine for a V12. The angle should be some multiple of 360/# of cylinders. Most V12s are 60 degrees, but 90 works too (as long as the crank is designed correctly).
(The suburban and the aircraft engine all had billet cranks of different designs. This is a test to try and cut down on production costs.)
Awesome build!
Please make a video walk around. It would certainly put to rest those skeptics (myself included).
Also, why v12? It seems like v16 would be 100 times easier. You could leave the heads alone and just weld up the blocks. Also the head gaskets wouldn't have to cross your welds, which seems like a giant flaw in your design now. Are you planning on re-machining the entire head gasket surfaces on the block and heads?
Please make a video walk around. It would certainly put to rest those skeptics (myself included).
Also, why v12? It seems like v16 would be 100 times easier. You could leave the heads alone and just weld up the blocks. Also the head gaskets wouldn't have to cross your welds, which seems like a giant flaw in your design now. Are you planning on re-machining the entire head gasket surfaces on the block and heads?
). It is also at 8.9L, which is plenty enough displacement for all kinds of things.Of course we are surfacing the block and heads.
It fits into a harley engine bay just nicely
What would you do for compression?
Thread Starter
Staging Lane
Joined: Apr 2013
Posts: 53
Likes: 0
From: Seattle, Washington
A lot of people wanted to know about the V4
This is one that we pulled out of storage yesterday. It hasn't been dressed out, sleeved, or completed yet. These are remnants of the V12 build for the plane. With every v12 build, we can use the scraps to build one of these.
This is what it would look like with an intake on it for a motorcycle.
Obviously this isn't the intake that we would use on it, its just an example on size.
The block is a foot wide. The oil pump and water pump become over sized automatically, and you can buy any kind of performance LS1 part and use it.
This is one that we pulled out of storage yesterday. It hasn't been dressed out, sleeved, or completed yet. These are remnants of the V12 build for the plane. With every v12 build, we can use the scraps to build one of these.
This is what it would look like with an intake on it for a motorcycle.
Obviously this isn't the intake that we would use on it, its just an example on size.
The block is a foot wide. The oil pump and water pump become over sized automatically, and you can buy any kind of performance LS1 part and use it.
Awesome. Sick work. Can't wait to see one running.
Awesome work! What is your background? Done other projects like these before?
A lot of people wanted to know about the V4
Attachment 401159
Attachment 401160
Attachment 401162
This is one that we pulled out of storage yesterday. It hasn't been dressed out, sleeved, or completed yet. These are remnants of the V12 build for the plane. With every v12 build, we can use the scraps to build one of these.
This is what it would look like with an intake on it for a motorcycle.
Attachment 401161
Attachment 401163
Obviously this isn't the intake that we would use on it, its just an example on size.
The block is a foot wide. The oil pump and water pump become over sized automatically, and you can buy any kind of performance LS1 part and use it.
Attachment 401159
Attachment 401160
Attachment 401162
This is one that we pulled out of storage yesterday. It hasn't been dressed out, sleeved, or completed yet. These are remnants of the V12 build for the plane. With every v12 build, we can use the scraps to build one of these.
This is what it would look like with an intake on it for a motorcycle.
Attachment 401161
Attachment 401163
Obviously this isn't the intake that we would use on it, its just an example on size.
The block is a foot wide. The oil pump and water pump become over sized automatically, and you can buy any kind of performance LS1 part and use it.
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Thread Starter
Staging Lane
Joined: Apr 2013
Posts: 53
Likes: 0
From: Seattle, Washington
Thread Starter
Staging Lane
Joined: Apr 2013
Posts: 53
Likes: 0
From: Seattle, Washington
I think they just want a walk around to see it's not a Photoshop. Like stangtrader, I'm in the area and I know a few of us LSx guys would love to see in person! Maybe e can come by to vouch for you?
Awesome work! What is your background? Done other projects like these before?
Awesome work! What is your background? Done other projects like these before?
Motorcycles to blown alcohol dragsters to airplanes. Started when I was very young. I can't think of anything I haven't worked on.
Right now we're cutting them with an industrial sheer, but we are definitely going to transition to custom headgaskets.
Yes, we could. It's only metal
