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2004-05 cylinder head versus 2006+

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2004-05 cylinder head versus 2006+

 
Old 01-12-2019, 02:27 PM
  #21  
 
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Well it's not that hard of a job with the engine out, but you could always swap to a kpro ecu instead and keep it sealed
I also think the knock sensor is different on 06+ cars but not sure if that matters.
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Old 01-13-2019, 10:22 PM
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Originally Posted by Delta_lima View Post
Slightly different question from my side, have searched it, but just to make sure.

I have an early 2002 S2000. lower block is shot and I can get a new (F20c) 2009 lower block.

Is it plug and play, on my 2002 head, intake and harness / sensors? I believe it is, since there are almost no difference in the lower blocks through the years.

Thank you very much.
sorry i just saw your message. Like the others mentioned, the displacement went from 2.0 to 2.2L and as a result the power band was affected. The stroke was changed with and added 6.7mm, and I believe so was the rod ratio. You will not be able to rev a 2009 bottom end to the same redline as your AP1. The cranks sensor is diff, the compression went from 11:0.1 to 11:1, and I believe the bracket under the intake manifold that bolts into the block was changed.

I wasn't sure if you're getting a bare block, or if the 2009 block you're getting has the internals with it. Since the displacement/compression and stroke was changed you might want to check out if that affected piston to valve clearance at all, i don't remember off the top of my head, but I doubt it would be an issue. The 2006+ head an intake manifold casting are different and use less sensors and also don't have the air injection system and there's the change too DBW, but that shouldn't be an issue if your using your AP1 head and harness.

if you're doing all that work, it'd also be a good time to swap out AP1 retainer for AP2 and keepers if you haven't already done so.
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Old 01-13-2019, 10:26 PM
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Originally Posted by Delta_lima View Post
Ai, serious? That would mean to remove a factory sealed carter and chain cover :/
it's not that hard to do in the car either. removing the crank pulley and the oil pan clearance will be your biggest battle if doing it in the car. with the motor out of the car, it's real easy but messy since Hondabond never comes out in a smooth evenly distributed line lol
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Old 01-14-2019, 03:51 AM
  #24  
 
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Originally Posted by Silver_Bullet_S View Post
it's not that hard to do in the car either. removing the crank pulley and the oil pan clearance will be your biggest battle if doing it in the car. with the motor out of the car, it's real easy but messy since Hondabond never comes out in a smooth evenly distributed line lol
Crank pulley is easier to remove in car IMO. Big ass 3/4 breaker bar, hand brake on all the way, transmission in 6th. She'll come out.
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Old 01-14-2019, 05:29 AM
  #25  
 
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The crank pulley wants to stay on the car! We splayed the swivel end on a 3/4" drive 24" breaker bar pulling the crank pulley on a buddies 2002 car. Welded it in a fixed 90° angle to finish the job. We had 4- or 5-foot extenders on it and the special fitting that prevents the engine from turning. Still took two of us. I have no idea what tools would get this off the engine if it wasn't bolted solidly in place.

-- Chuck
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Old 01-14-2019, 09:13 AM
  #26  
 
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Originally Posted by Silver_Bullet_S View Post
sorry i just saw your message. Like the others mentioned, the displacement went from 2.0 to 2.2L and as a result the power band was affected. The stroke was changed with and added 6.7mm, and I believe so was the rod ratio. You will not be able to rev a 2009 bottom end to the same redline as your AP1. The cranks sensor is diff, the compression went from 11:0.1 to 11:1, and I believe the bracket under the intake manifold that bolts into the block was changed.
I wasn't sure if you're getting a bare block, or if the 2009 block you're getting has the internals with it. Since the displacement/compression and stroke was changed you might want to check out if that affected piston to valve clearance at all, i don't remember off the top of my head, but I doubt it would be an issue. The 2006+ head an intake manifold casting are different and use less sensors and also don't have the air injection system and there's the change too DBW, but that shouldn't be an issue if your using your AP1 head and harness.
if you're doing all that work, it'd also be a good time to swap out AP1 retainer for AP2 and keepers if you haven't already done so.
Maybe you should read the message and not only see it
He is getting a new F20C block, yes we got AP1 in all year cars over here in Europe.
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Old 02-07-2019, 09:42 AM
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Yes, thank you guys.

I got a new 09 F20c2 lower crate block and I just swapped the trigger crankshaft wheel, to make it compatible with my 2002 head and S2000.

I had the head refurbished and installed in all together, so basically a fresh/new engine!
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