K20 head swap parts list needed

Privman

Privman

Active Member
74
42
Georgetown KY
Vehicle Model
Civic Si
Body Style
Sedan
Ingredients needed:

10003-RRB-A02 Cylinder head assembly 2010 Civic Si
15810-PRB-A03 VTEC oil control solenoid 2010 Civic Si
18712-RBB-000 Water outlet 2008 TSX
18714-RAA-A01 Water outlet gasket 2008 TSX
13450-PNA-004 Oil pump chain tensioner 2006 RSX
13460-PNC-004 Oil pump chain guide 2006 RSX
13441-PCX-004 Oil pump chain 2006 RSX
15100-PRB-A01 Oil pump 2006 RSX
11221-PNC-000 Windage Tray (Plate, Baffle) 2006 RSX
06110-RBB-010 Gasket kit, cylinder head 2008 TSX
06114-R40-J01 Gasket kit, chain case 2012 Civic Si
17125-RRB-A00 Intake manifold stay 2010 Civic Si
17100-RRC-000 Intake manifold
16450-RBB-003 Fuel injector (4) 2010 Civic Si
13322>7-PRB-A01 Main bearing upper 2012 Civic Si
13342>7-PRB-A01 Main bearing lower
13212>7-RBB-003 Rod bearing

Injectros (race spec)
Oil Pan Baffle 2012 Si (race spec)
Engine Wire Harness 2012 Si (race spec)
Engine Belt (52.5) 2012 Si (race spec)
Manifold, Exhaust 2012 Si (race spec)
Pistons, Rods (race spec) 12 to 1. No problem with the correct piston shape and will run on pumpgas.View attachment 9266image.jpg
 
Here's pricing. I'm sure there is some that are cheaper else where. I just searched on an OEM Honda/Acura website. This just give a ball park of what your getting into if your going to do the swap!

10003-RRB-A02 Cylinder head assembly 2010 Civic Si
$1,398.54

15810-PRB-A03 VTEC oil control solenoid 2010 Civic Si
$134.52

18712-RBB-000 Water outlet 2008 TSX
$55.61

18714-RAA-A01 Water outlet gasket 2008 TSX
$2.59

13450-RAA-A02 Oil pump chain tensioner 2006 RSX
$84.99

13460-PNC-004 Oil pump chain guide 2006 RSX
$8.69

13441-PCX-004 Oil pump chain 2006 RSX
$35.46

15100-PRB-A01 Oil pump 2006 RSX
$140.15

11221-PNC-000 Windage Tray (Plate, Baffle) 2006 RSX
$19.35

06110-RBB-010 Gasket kit, cylinder head 2008 TSX
$208.78

06114-R40-J01 Gasket kit, chain case 2012 Civic Si
$22.95

17125-RRB-A00 Intake manifold stay 2010 Civic Si
$8.07

17100-RRC-000 Intake manifold
$219

16450-RBB-003 Fuel injector (4) 2010 Civic Si


13322-PRB-A01 Main bearing upper 2012 Civic Si
$9.93

13342-PRB-A01 Main bearing lower
$9.93

13212-RBB-003 Rod bearing
$9.59

Injectors (race spec)
Oil Pan Baffle 2012 Si (race spec)
Engine Wire Harness 2012 Si (race spec)
Engine Belt (52.5) 2012 Si (race spec)
Manifold, Exhaust 2012 Si (race spec)
Pistons, Rods (race spec) 12 to 1
 
thanks for compiling a list of stuff needed. Much appreciated.

The "race spec" stuff interests me. I'm guessing these items are custom? Custom wiring harness, custom pistons/rods...etc?

"Manifold, Exhaust 2012 Si (race spec)"
using some type of 2012 exhaust manifold???? on a k20??? :hmmm?:

Injectors (race spec)
Oil Pan Baffle 2012 Si (race spec)
Engine Wire Harness 2012 Si (race spec)
Engine Belt (52.5) 2012 Si (race spec)
Manifold, Exhaust 2012 Si (race spec)
Pistons, Rods (race spec) 12 to 1
Click to expand...
 
webby said:
thanks for compiling a list of stuff needed. Much appreciated.

The "race spec" stuff interests me. I'm guessing these items are custom? Custom wiring harness, custom pistons/rods...etc?

"Manifold, Exhaust 2012 Si (race spec)"
using some type of 2012 exhaust manifold???? on a k20??? :hmmm?:
Click to expand...

Correct. Everything with "race spec" next to it has to modified/fabricated etc. The rest of the things listed with prices are things you can buy out right and use. I was told that the piston/rod combination is a little out of wack... It was said that the 06 TSX piston/rods combo work though!
 
if you're using a k20 head, ... you could use some sort of k20 exhaust header, no? I don't get why they labeled it "2012 exhaust manifold". The 2012 exhaust is cast in the head. Regardless... I can't wait to see if someone attempts this.
 
webby said:
if you're using a k20 head, ... you could use some sort of k20 exhaust header, no? I don't get why they labeled it "2012 exhaust manifold". The 2012 exhaust is cast in the head. Regardless... I can't wait to see if someone attempts this.
Click to expand...

i don't know if the fitment of a k20 would work or not. i haven't done this yet so i'm still learning myself. i'm thinking it means one needs to be fabricated to be used on the k24.
 
webby said:
if you're using a k20 head, ... you could use some sort of k20 exhaust header, no? I don't get why they labeled it "2012 exhaust manifold". The 2012 exhaust is cast in the head. Regardless... I can't wait to see if someone attempts this.
Click to expand...


the 8th header would bolt to the head of course. but i think the block might be a C.H. taller than the k20. So you would need to somehow adapt/overcome this. lol. Plus the flange is probably different at the exhaust pipe. But itd be simple for any reputable exhaust shop to modify the end of the header to work.
 
All the "race spec" stuff listed is parts that need to be fabricated or modified to work!!!
 
I'm pretty sure there have already been K20/24 headers on the market for a while now. If the TSX internals work on the Z7 block, I think we'll be seeing all-motor, 300whp 9th gen builds pretty soon.

OP, is that 251hp 194lb/ft dyno sheet with the stock K20Z3 cams?
 
does anyone know what the wire harness changes need to be? im pretty sure people are building k20/k24's with our stick pistons
 
Umm, correct me if I'm wrong, but wouldn't the use of a k20z3 head require the use of a bolt-on header (OEM or not) versus the 9thgen downpipe? :eyebrow:
 
The OP says he's using a "2012 race spec exhaust manifold" with his K20z3 "2010 Civic Si 10003-RRB-A02 Cylinder head assembly"
 
Here are a couple already built if anyone is interested :)
1625514_10100610570124705_1872859316_n.jpg
 
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