So I cant find a definitive answer anywhere on any forum using any kind of google search or bing as to whether you can slap any K20 heads onto a K24Z3 block (out of a TSX to be more specific). My boy wants to throw and frankenstein into his EM2. Chime in plz, thanks. Gonna get answers for myself directly...

 

yes, but you need to use the R40 headgasket as one hole is angled different and can leak.

 

Finally someone chimed in lol. So is an R40 headgasket an aftermarket gasket made for this or just a stock gasket for a certain motor? What are the options as far as K20 heads? Any of em as long as we use an R40 headgasket?

 

the R40 gasket is a stock gasket for 09 TSX or CRV etc...

options for K20 heads? you use any of the older K series heads witht he R40 headgasket thats it. lol use the R40 exhaust cam gear too its a bit lighter than the older ones lol...

 

I was unaware of this. Kudos.
Keep in mind of oil filter placement. Build sounds awesome man, Happy Building.

 

sorry for the thread revival but the R40 exhaust cam will work properly with the k20 timing chain? and why not the intake cam?

 

lol so after reading through this awesome thread Im saving myself the headache and sticking with a k24aX
http://www.k20a.org/forum/showthread.php?t=107674
great build to read through though

 

You can't use a K20 tchain with a K24 engine, its shorter.
You need to stick with a K24 tchain.

Just some observations...
Cheetah, correct me if I'm wrong, but the lighter exhaust cam gear might not be a good idea to use because of the valvetrain harmonics on the A2 head. Not to mention, A2 exh cam is three-lobed vs k24z3's single lobe exh cam. There's a reason the exhaust cam gear is heavier on the A2 head.

There's also the K24Z3's RL5 piston in-between valve pocket humps. They may make contact with the A2 combustion chamber.

this pic pwns me...

 

Idk if u guys are interested but i have a k24z3 that i will let go cheap of a 2010 tsx w/28,xxx miles will sell cheap

Pm me

 

do you need the HPD parts list? I have the list in pdf

 

ahahahah im the italian guy in the pic with my k24z3/k20a2 head.
what is the problem? :D

here is my build thread, on k20a.org.........
http://www.k20a.org/forum/showthread...t=pulser+plate

 

haha no problem at all!
its that intense dramatic stare you have .... "you toucha my mota, I kicka yo ***!" comes to mind. I have a comical imagination

Nice build btw and hows that motor holdin up?

 

what was the problem with tranny?which one are you using?

 

TOTALLY AGREE


@katman: ROTFL i look so proud :D i hope to run my car for the end of january
@garrett: no problem instead. i use ep3 eudm civic type R tranny.
when i install it i forgot to buy a little bush/spacer that k24 no have because had authomatic tranny, and i posponed the build project.

number 3 - 22103-PNA-003
http://www.lingshondaparts.com/honda...&block_03=9812

 

wrong.
you must use gasket that follow the head.
in this case u must use K24Ax (TSX < 09) Head gasket and then modify on the block the oil passage.
From slot to circular.
If need, i have pics of that modify

 

OK I'm lost do you need a K24Z3 head gasket or a K24A2 head gasket for the K24Z3 Block/ K20A2 Head build?

There are mixed answers and I'm not sure who is right.

 

You must use the K24A one and modify the oil passage or by welding or by JB Weld.
I used JB Weld because I found the oil leakage at the end of the swap and I didn't want remove again the block from the car for welding and grinding.
You must make the slot oil passage from circular to a slot.
I update just some pics of the whole work here for you, buddy.

The gasket that I used is on the right. On the left is K24Z3

 

Thanks Man, how about a list of other parts you had to get?

 

Substitute Oil Pump (remove balance shafts): P/N 15100-PRB-A01
HPD Exhaust Manifold Required: P/N 18150-F23S-A00
The following alternate engine parts may be used in their entirety
2012 Honda Civic Si Competition Spec Parts
P/N Description Vehicle Cost
10002-RX0-A00 Block Assy 2012 Civic Si 1601.24
10003-RRB-A02 Cylinder head assembly 2010 Civic Si 1695.93
12310-R40-A00 Valve Cover 2012 Civic Si 59.97
11410-REZ-A01 Case Assy, Chain 2012 Civic Si 98.24
15810-PRB-A03 VTEC oil control solenoid 2010 Civic Si 119.92
18712-RBB-000 Water outlet 2008 TSX 48.13
18714-RAA-A01 Water outlet gasket 2008 TSX 2.40
13450-PNA-004 Oil pump chain tensioner 2006 RSX 41.17
13460-PNC-004 Oil pump chain guide 2006 RSX 7.51
13441-PCX-004 Oil pump chain 2006 RSX 30.69
15100-PRB-A01 Oil pump 2006 RSX 121.28
11221-PNC-000 Windage Tray (Plate, Baffle) 2006 RSX 16.74
06110-RBB-010 Gasket kit, cylinder head 2008 TSX 157.92
06114-R40-J01 Gasket kit, chain case 2012 Civic Si 21.27
13021-R40-A12 Piston ring set, +.25mm 2012 Civic Si 33.41
17100-RRC-000 Intake manifold 2010 Civic Type R 511.45
16400-RRC-003 Electronic Control, T/B 2010 Civic Type R 392.78
16176-RBB-A01 Gasket, T/B 2010 Civic Type R 3.07
17125-RRB-A00 Intake manifold stay 2010 Civic Si 74.80
16450-RBB-003 Fuel injector (4) 2010 Civic Si 386.19
13322>7-PRB-A01 Main beaing – upper 2012 Civic Si – based on
13342>7-PRB-A01 Main bearing – lower measured clearances
13212>7-RBB-003 Rod bearing
18100-F23S-A10 Race Header 2012 Si (race spec) $1600

http://www.world-challenge.com/image...-vs-4-VTS-.pdf

 

whay type of power would you see from this and what rpm would this beable to rev to and still make power and not throw a rod?

 

It's more so for the vtec on both cams and better cam selection (there are only two options for z blocks right now, and both are regrinds).

No one I know running the z pattern stock bottom end is running it past 8k, from what I have seen. I know I wouldn't do it.

 

what i remember is:
complete head from k20 ep3 (eudm 2.0 200cv)
blok 73mm TB
RBC intake manifold
Skunk megapower exhaust manifold
oem ep3 injectors on K tuned fuel rail
CUSTOM chain cover (there is no one that fit on Z block with A head, i have pics of modifies)
K2xA pulser plate (K pro cannot works without it)
ep3 oil pump
ep3 baffle
ep3 oil pan
ep3 ckp sensor
ep3 engine harness
water pump should be from K20z4 (drilled and threaded a new fixing hole on the block)
P/S pump should be from K24A2

rev limit around 7.600rpm, 252 cv at the flywheel

 

would you be able to send the parts list if its still available

 

https://redirect.viglink.com/?format...-vs-4-VTS-.pdf