Head from gen 5 on gen 4 - Kawasaki ZX-10R.net
 
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post #1 of 7 Old 08-22-2017, 08:07 AM Thread Starter
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Head from gen 5 on gen 4

Anyone done this? Is it a straight swap? Just wondering if there will be any benefit from that performance wise
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post #2 of 7 Old 08-22-2017, 08:44 AM
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Quote:
Originally Posted by ypyk_xau View Post
Anyone done this? Is it a straight swap? Just wondering if there will be any benefit from that performance wise
I have not done it. No straight swap, because throttle bodies are different, TB is round and smaller diameter, meaning at least adapting boots is needed. It could work, head gasket is same part number, I would guess that all cam chain offsets could be same too (fact that race cam part number is same). Piston to valve clearance should be checked and degrees checked to be good.
Sure performance will increase after good tuning. When you need performance then deck the head and use think gasket too.

Gen4 race: high spec.
Suzuki GSX1300R Hayabusa 2013: stock.
Kawasaki KX450F 2016: love it.
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post #3 of 7 Old 08-22-2017, 12:09 PM
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same HG, so I imagine that if you put everything else from a gen4, there will be no problem
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post #4 of 7 Old 08-22-2017, 04:52 PM
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What about valve "pockets" in piston?
They could possibly be bigger because of bigger exhaust valves and deeper to accommodate smaller gen5 cam degree numbers.

Gen4 race: high spec.
Suzuki GSX1300R Hayabusa 2013: stock.
Kawasaki KX450F 2016: love it.
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post #5 of 7 Old 08-22-2017, 09:47 PM
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He needs to measure ptv clearance


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post #6 of 7 Old 08-23-2017, 03:53 AM
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Yes.
Having no idea what the lateral clearance to piston "pocket" could be. Traditional ptv check not showing it, use clay for example.

Gen4 race: high spec.
Suzuki GSX1300R Hayabusa 2013: stock.
Kawasaki KX450F 2016: love it.
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post #7 of 7 Old 08-23-2017, 06:14 AM
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Just make the valve pockets same as valve. A dremel and 15 min is done

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