S2000 Under The Hood S2000 Technical and Mechanical discussions.

K20a Swap is it really possible?

Old 12-06-2005, 05:33 PM
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Default K20a Swap is it really possible?

before you guys yell at me, i tried searching but the button up top next to Mys2k doesnt work for me i click it and it animates like i clicked it but nothing happens, then that box at the top right hand corner that says search forums i enter my search in there and a page loads but its just the main page that loads

so any help whould be appreciated

ok so iv been looking around on some forums trying to decide on what kind of car i want, latley iv been seeing some talk of an adapter plate to be able to put a k series motor into a S2k

now some people might say why whould you put a lesser hp motor into your car, but semi built k24/k20 motors are making 270whp n/a easy, fully built they can make 300whp n/a

and you could sell your stock f20c/f22c and use that money to fund the purchase and building of the new motor, you might need to add a little cash depending on how crazy you go



any help on this subject whould be greatly appreciated

because to tell you the truth this kind of excites me to have 270+rwhp in an S, im sure you could build an f20 to this power but for 3 times the amount of money



again thanks for any help
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Old 12-06-2005, 05:41 PM
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o and i was just thinking

people that are goin to say that the intake manifold, throttle body points the wrong way, my answer at least is individual throttle bodies, or maybe i dont know if a s2k mani whould fit


and im guessing maybe you could adapt a k pro system to work? maybe
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Old 12-06-2005, 05:42 PM
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The blocks are similar, but the K20 lacks any mounting bosses for the S2k's engine mounts. The S2k's trans mounting bolt pattern is different from the K as well.


It's not a practical swap.
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Old 12-06-2005, 05:45 PM
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With the money spent on the K24/K20 swap, you could build a 300whp S2K. You'd need to change out a number of things, it wouldn't be worth it in the end unless you have bottomless pockets.
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Old 12-06-2005, 06:05 PM
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Originally Posted by Slows2k,Dec 6 2005, 09:42 PM
The blocks are similar, but the K20 lacks any mounting bosses for the S2k's engine mounts. The S2k's trans mounting bolt pattern is different from the K as well.


It's not a practical swap.

you mean the mounting points for the motor are in different spots?

and im aware about the trans mounting points thats why i asked about an adapter plate


and why isnt it a practical swap?
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Old 12-06-2005, 06:07 PM
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Originally Posted by mugenrsx,Dec 6 2005, 09:45 PM
With the money spent on the K24/K20 swap, you could build a 300whp S2K. You'd need to change out a number of things, it wouldn't be worth it in the end unless you have bottomless pockets.
actually not iv seen people spend 6-7 grand n/a on an s2000 motor and they are not making anywhere near 300 whp

you spend 6-7 grand on a k24/k20 swap and you will be for damn sure


and what things whould you need to swap out for the swap to work?
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Old 12-06-2005, 06:10 PM
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There are no mounting bosses on the side of the block, where the mounts attach on a s2k.

The K motors mount from the timing chain case, and the transmission on a FWD car.

It's not practical because you can't mount a K motor in the S2k chassis easily. The intake manifold would put the thottle body against the firewall, not to mention the wiring differences between the 2 chassis.
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Old 12-06-2005, 06:15 PM
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makes sense


ok scratch that


how bout this, could you use the crank and related parts out of a k24 with upgraded rods and pistons and other misc bottom end parts, and put a k20a head on a f motor?

of course there whould need to be some custom wiring to be done, and whould use a krpo with this setup
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Old 12-06-2005, 06:21 PM
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The timing chain drives are different between the K motor and the F20C. The heads will not swap.

If you wanted a 2.4L S2k, it's been done. But the RPM limit of a K24 is much lower than a S2k. You'd have a very torquey S2k, 91MM stoke on a K24 (IIRC) The car would have the wrong gearing to use the power effectively.

if you want to spend 6K, buy a SC kit and be done with it.
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Old 12-06-2005, 10:22 PM
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Originally Posted by CarBoN,Dec 6 2005, 08:07 PM
actually not iv seen people spend 6-7 grand n/a on an s2000 motor and they are not making anywhere near 300 whp

you spend 6-7 grand on a k24/k20 swap and you will be for damn sure


and what things whould you need to swap out for the swap to work?
Who said anything about n/a? Also $6000-7000 wont get you a n/a 300whp k20/k24.
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