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Pictures of OS GIKEN dual cam head at SEMA


SDgoods

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This comes up every year.

 

Yes, they have been continuously available since they were first released, and NO, you can't buy just the head.

 

You send them a core engine, and OS Giken sends you back a complete TC24-B1Z engine, WITH A WARRANTY!

 

that's a 3.1L forged everything bottom end on the TC24-B1 head, with the gear timed cams, a variaty of cam profiles for them to choose from, and the intake and exhaust manifolds with the carbs or fuel injection.

 

It costs about 100,000$US.

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This comes up every year.

 

Yes, they have been continuously available since they were first released, and NO, you can't buy just the head.

 

You send them a core engine, and OS Giken sends you back a complete TC24-B1Z engine, WITH A WARRANTY!

 

that's a 3.1L forged everything bottom end on the TC24-B1 head, with the gear timed cams, a variaty of cam profiles for them to choose from, and the intake and exhaust manifolds with the carbs or fuel injection.

 

It costs about 100,000$US.

 

"It costs about 100,000$US."  Really...I'll be on the side line. 

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This comes up every year.

 

Yes, they have been continuously available since they were first released, and NO, you can't buy just the head.

 

You send them a core engine, and OS Giken sends you back a complete TC24-B1Z engine, WITH A WARRANTY!

 

that's a 3.1L forged everything bottom end on the TC24-B1 head, with the gear timed cams, a variaty of cam profiles for them to choose from, and the intake and exhaust manifolds with the carbs or fuel injection.

 

It costs about 100,000$US.

 

Not quite true, but close enough for the ilk in this thread...

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I thought 20-30k for the head was pretty expensive when I read that :icon52:

 

I'm sure there are people out there that pay what they're asking from time to time.  I don't know much about amateur racing series other than there are a lot of rules you have to follow depending on what class you're in.  If you were to drop this into your Z, since it is still technically an L28, would you be able to stay in the same class as the other L28 guys?

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The engine is considered a max point mod (engine swap) with Redline and NASA and is not legal for any club racing class with SCCA except for the "run what ya brung" classes like ITE. It would not be competitive in NA form against the turbo engines it would have to run against here in the US. A L28 turbo engine built at 1/10 the cost would wipe it out given equal chassis prep.

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It was not "continuously available".... There was the original production run...and that was it!

Demand called for another run and so they went back to the drawing board to update what they previously had.

 

After about 1990-92 that was it until the new head came out.

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