Head swap - 1000rr onto 929 - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

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post #1 of 28 Old 09-09-2010, 6:48 PM Thread Starter
 
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Head swap - 1000rr onto 929

Well, first off, i dont know if this is even possible.

If someone here has any info on this at all it would be appreciated, cause im about to blow money on a science experiment.

So plan is to take a2006 1000rr head and fit it to the 2001 929 jugs.

Ive been staring at pictures and exploded diagrams and from what I can see all the holes appear to be in the right places, just dont know if they are the right scale.


Will keep you all posted on the progress, in the mean time please feel free to leave any info you have, or may come across.

Cheers.
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post #2 of 28 Old 09-09-2010, 7:29 PM
 
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Re: Head swap - 1000rr onto 929

Hey man check with bladeracer. That guy REALLY knows what hes talking about. My opinion is that it wouldnt work, honda's not really good about reusing parts/part compatibility, but im suscribing to the thread! Let us know!
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post #3 of 28 Old 09-09-2010, 7:49 PM
 
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Re: Head swap - 1000rr onto 929

Pictures and Diagrams are not the best thing to go from.. Unless they are to scale. So unless you can get the head for cheap, I wouldnt do it until you know for sure.
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post #4 of 28 Old 09-09-2010, 8:03 PM
 
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Re: Head swap - 1000rr onto 929

i asked same question bout a 954,,, no one seemed to know for sure... i thik its a brilliant idea. many are doing the samething to honda car motors a some are making rediculous power.. they call it frankenstein around here.. the car parts mosty all bolt right up from motor to motor some need modifications. tuning major issue though..
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post #5 of 28 Old 09-09-2010, 8:10 PM
 
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Re: Head swap - 1000rr onto 929

The Honda car motors are a little different.. If I recall correctly, you cant put a D head on a B motor
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post #6 of 28 Old 09-09-2010, 8:37 PM
 
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Re: Head swap - 1000rr onto 929

yes engine series are different,, but their performance mtors didnt stray too far from each other,, b series the same lik a 929 to a 954, f and h series the same, b series trannies interchangable with modification, k series the same.. all series are unique to that series of motor. but if u were to fit that head on ur 929, crank may also fit, or be made to fit,, giving you larger stroke. and quickly u got a 1000cc bike. also would open up a wholenew world of after market parts,, im not a pro at this but this is what i too have been trying to find out,,
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post #7 of 28 Old 09-09-2010, 8:39 PM
 
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Re: Head swap - 1000rr onto 929

I am just going out on a limb to say that the 06 1000RR is a different motor then a 929.... So good chance of it not being so interchangeable
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post #8 of 28 Old 09-09-2010, 9:10 PM
 
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Re: Head swap - 1000rr onto 929

very possible,, but parts usually dont stray too far from their roots. design may change but usually not by much, they have proven technology and usually try not to stray too far from it. i wouldnt be suprised if parts were interchagable or could be made to fit,, but as i said i cant find anyone online modifying these motorcycles like this. bore is the same, heads are improved, and stroke is higher on the 1000rr , definately worth looking into.. good luck
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post #9 of 28 Old 09-10-2010, 12:15 AM
 
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Re: Head swap - 1000rr onto 929

Bore may be the same.. but you have to think about bore spacing..
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post #10 of 28 Old 09-10-2010, 8:35 AM
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Re: Head swap - 1000rr onto 929

Quote:
Originally Posted by burner303 View Post
Well, first off, i dont know if this is even possible.

If someone here has any info on this at all it would be appreciated, cause im about to blow money on a science experiment.

So plan is to take a2006 1000rr head and fit it to the 2001 929 jugs.

Ive been staring at pictures and exploded diagrams and from what I can see all the holes appear to be in the right places, just dont know if they are the right scale.


Will keep you all posted on the progress, in the mean time please feel free to leave any info you have, or may come across.

Cheers.

As long as bore spacing is the same then it's probably possible.
Whether you need to modify oil and coolant flow and re-drill bolt holes would be the main questions.
I believe they all have the 81mm bore spacing but I haven't been able to confirm this yet on the 1000RR - 929 and 954 heads are the same though.
I know the throttle bodies are the same spacing as I've already mounted the '05 airbox onto the 954 TB's on my 929.
I'd be asking Ebay sellers if they'll sell you the old head gaskets from engines they're parting out so you can compare the two. Or for $50 you can buy a new 1000RR gasket.
I am playing around with an '05 1000RR engine just now while I try to move the injection system across to my 929. I expect to get the valve cover off so I can measure up bore spacing and bolt pattern as I've had the same idea - hopefully I get a chance to open it up next week.
I don't know that there's going to be much improvement though.
The 1000RR is not all that much further up the hp chart than the 954, and the combustion chamber, port design and cams are only a part of that additional power. Part of it is simply due to the extra 45cc of capacity and longer stroke and part of it is due to the dual-injection and ram-air system.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #11 of 28 Old 09-10-2010, 8:37 AM
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Re: Head swap - 1000rr onto 929

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Originally Posted by sconi View Post
yes engine series are different,, but their performance mtors didnt stray too far from each other,, b series the same lik a 929 to a 954, f and h series the same, b series trannies interchangable with modification, k series the same.. all series are unique to that series of motor. but if u were to fit that head on ur 929, crank may also fit, or be made to fit,, giving you larger stroke. and quickly u got a 1000cc bike. also would open up a wholenew world of after market parts,, im not a pro at this but this is what i too have been trying to find out,,

I have considered the 1000RR crank into the 929/954 but until I have one I can measure up I can't say if it's feasible.
Good chance I'll have a crank soon though and I already have 929 and 954 engines in pieces.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #12 of 28 Old 09-10-2010, 5:58 PM Thread Starter
 
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Re: Head swap - 1000rr onto 929

There are alot of questions around this whole thing.
Bladeracer is right, I could probably get an old gasket and check it against the 929 bore and head to get an Idea. I would like to have a head, even if its garbage, just to try and mock up. The crank would be a good idea also, but probably alot of work.

Bladeracer, How did the TB swap work out? I am running 54 bodies on my 29 with the 54 airbox. I think I would like the Idea of the Dual stage injection on the 929.
Do you have any pictures of the install?

Anyway, on with the search for gasket or head, which ever comes first!!
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post #13 of 28 Old 09-10-2010, 8:06 PM
 
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Re: Head swap - 1000rr onto 929

good luck blade, very interested to see how it works out,

how bout headers.. are they interchangeable?

Last edited by sconi; 09-10-2010 at 8:38 PM.
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post #14 of 28 Old 09-10-2010, 9:52 PM
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Re: Head swap - 1000rr onto 929

Quote:
Originally Posted by burner303 View Post
There are alot of questions around this whole thing.
Bladeracer is right, I could probably get an old gasket and check it against the 929 bore and head to get an Idea. I would like to have a head, even if its garbage, just to try and mock up. The crank would be a good idea also, but probably alot of work.

Bladeracer, How did the TB swap work out? I am running 54 bodies on my 29 with the 54 airbox. I think I would like the Idea of the Dual stage injection on the 929.
Do you have any pictures of the install?

Anyway, on with the search for gasket or head, which ever comes first!!

Just checked the fiches and realised why I never pursued the crank swap idea :-)
The 1000RR primary drive is on the inner crank weight of number 4 and the 929/954 is on the end. Probably not impossible but certainly difficult. Would be cheaper and easier to stroke the 929/954 crank.
Got a few pics of the basic setup but nothing really worth sharing yet.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #15 of 28 Old 09-10-2010, 11:45 PM
 
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Re: Head swap - 1000rr onto 929

was reading other posts... problem with changing stroke is getting rods... i dont know for sure its a problem, but giving u info i found
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