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K20 and K24
https://www.thejdm.com/forum/viewtopic.php?f=17&t=9148
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Author:  spdyslvrEX [ September 23, 2007 ]
Post subject:  K20 and K24

I understand that you can drop a K20 in the 01 civic. Now I am reading that you can get a K24 (CRV motors i think) and drop those in with the K20 head. Ive also been reading that you can get the K-Series Honda Accord Motors whose pistons have more compression with the K20 Head and drop those in....How much of this is true or am I just reading it wrong.....

It is also supposedly alot cheaper to do it this way.....The more info the better.....
Author:  airbrush1 [ September 24, 2007 ]
Post subject: 

k24 is from accord, crv, element, accord, tsx.....

It can be cheaper to run a k24 with a K20 vtec head if you get the right k24 block. I believe tsx and one other.

My little brother has an rsx that's k24 swapped. using an accord block with TSX pistons, ended up being cheaper than fixing his k20
Author:  miyagi [ September 24, 2007 ]
Post subject: 

you have to watch though .... there is one k24 that you need to use TSX pistons in ( i think it's the a4, but i'm not sure) to be able to use the k20 head. If you can find a TSX shortblock, you're good to go.

You can find the first k24's i mentioned for dirt cheap too....

check out k20a.org and it'll have all the info you need.
Author:  airbrush1 [ September 24, 2007 ]
Post subject: 

correct, you will have to use tsx pistons or aftermarket in the accord k24 at least
Author:  kotomile [ September 24, 2007 ]
Post subject: 

what is the reason for the piston swap? Compression, weight..?
Author:  miyagi [ September 24, 2007 ]
Post subject: 

sorry - meant to say why, but got a phonecall so i wrapped it up a bit early.

Piston to Valve clearance.
Author:  airbrush1 [ September 24, 2007 ]
Post subject: 

yuppers
Author:  kotomile [ September 25, 2007 ]
Post subject: 

thanks!
Author:  spdyslvrEX [ September 26, 2007 ]
Post subject: 

sweet...I know that it will be a little more exspensive but will the Type R pistons fit if I got the over sized and the engine honed out? doesnt have to happen if it doesnt need to just curious....
Author:  Nikku [ September 26, 2007 ]
Post subject: 

if you get oversized pistons you need to bore the block as well. honing just cleans up the cross-hatch. er, wait, which block do you want to put these into? also you had better check piston to valve clearance as r pistons typically have a higher dome.
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