Engine Build: k24a4 Block + K20a2 Head

chameleon · May 17, 2006

Hey wanted to see if there was any interest to see how this motor was put together, its a customers simple build k24 and should put down 220whp+ / 170wtq. motor will be going in this weekend and then tuning should start from there on a dynapack.

K24a4 (accord) block was dissasembled, only thing that was kept on it was the water pump since that has to remain with the block since the block has no oil cooler assembly (maybe that can be adapted later on) i chose not to include it for simplicity. K24a4 pistons and rods were removed, nothing else internaly.

Here's basically a breakdown of whats NOT needed. whatever i didnt mention is in the middle meaning there is no difference between the K's (example: timing chain gear, crank sensor gear)

Lets really show the difference between the K24a4 and the k24a2 rods + pistons (see the domes)

taking a closer look.

k24a4 block almost complete with the k24a2 pistons and rods inserted.

What is needed to complete the bottom section of the block is shown here.
NOTE: modification is needed to the type s oil pump to be fitted to a k24 block (its not bolt on)

completing the timing chain requirements are listed here.

i really focused when i installed the type s head so halfway pics, but nothing special.
but k24a4 block and k20a2 head together in perfect harmony.

Yes completed, its going to make some one very happy!

K24 OEM CRV Headgasket part number = : 12251-PPA-004

*** I will update the thread when i modify and install the RBC manifold ***

Anyone needs a K built in NYC let me know, from mild to wild

fireman · May 18, 2006

Yes!!
I'm a newb, and trying to learn all I can about the K24a4. I have an element, and am trying to learn the best way to start a build up!!

Hercules · May 18, 2006

Awsome, is that tsx pistons and rods? Any mods to make them fit or just like stock?

chameleon · May 18, 2006

there ya go guys! enjoy..

dohcdoom · Mar 9, 2015

What bearings did you end up using with this build on rods and mains? Thanks.

SiFreak · May 18, 2006

What did you modify on the K20 oil pump?

MJ23FE · May 18, 2006

Schweeeet Manny. Looks good.
-Jalal

allmtrallday · May 18, 2006

shit looks fucking nice! another street monster!

fireman · May 19, 2006

thanks bro, that answered a lot questions that i had. How much power do you expect to get out of this setup as it sits? Does the power increase come from adding the head? Could get any increase from using a txs head on the k24a4 block?

civic5133 · May 19, 2006

great write up

chameleon · May 19, 2006

fireman said:
thanks bro, that answered a lot questions that i had. How much power do you expect to get out of this setup as it sits? Does the power increase come from adding the head? Could get any increase from using a txs head on the k24a4 block?

once said and done should make 220whp, he wont be able to afford a good exhaust until a couple weeks later so really sucks he will be on some crush bent not even 2.5" exhaust with some shitty muffler so thats gonna kill power bigtime so at first should be in the 200's until he can get a better exhaust. the type s head actually flows much more than the tsx but they will make similiar power!

EK9_K24 · May 19, 2006

What headers are those???

chameleon · May 19, 2006

rcrew.

Hercules · May 19, 2006

sweet bash on your thumb. lol

fireman · May 20, 2006

chameleon said:
once said and done should make 220whp, he wont be able to afford a good exhaust until a couple weeks later so really sucks he will be on some crush bent not even 2.5" exhaust with some shitty muffler so thats gonna kill power bigtime so at first should be in the 200's until he can get a better exhaust. the type s head actually flows much more than the tsx but they will make similiar power!

Would a stock TSX head be a direct bolt on to my Element block?

killer k · May 20, 2006

yo son that shit is fire my dude the owner must be sexy as fuckkid

chameleon · May 21, 2006

fireman said:
Would a stock TSX head be a direct bolt on to my Element block?

all K's are interchangeble, but the 3 lobe cam heads will interfear with the offset valve reliefs on the pistons.

sikvic · May 21, 2006

SiFreak said:
What did you modify on the K20 oil pump?

im doing the k24a1 swap what is need to make my oil pump work .I have the whole k20a2 motor with spun rod bearing and a complete k24a1 longblock that i just picked up. Me and jdmsouth have allready begun the tear downs on both motors.

chameleon · May 21, 2006

i forgot to take a picture of it, but actually its pretty simple, teh k24 crank girdle has a raised up section which is flush on the k20's so therefor the oil pump doesnt sit evenly with the bolt surface, you basically have to cut/trim that raised surface area out of the oil pump, so the oil pump cups that and then you are able to bolt it down.

EGfrank · May 21, 2006

that motor is gonna be sweet! take it from me i know, its what i have.

sleeper6speg · May 21, 2006

EGfrank said:
that motor is gonna be sweet! take it from me i know, its what i have.

damn you guys....stop teasing....

#2 · May 21, 2006

Damn good info. :up: :up:

siknezzallmotor · May 22, 2006

any suggestions on what kind of aftermarket rods and pistons? im doing a k24 build and im stuck on what i should use

chameleon · May 22, 2006

definitely some CP 87mm 12.5:1 x-forged pistons. and some eagle rods, but if you got money to spare then get some crowers or better.

kevinoneill · May 22, 2006

PIMP adding this to my "soon to be sticky"

checokxx · May 22, 2006

chameleon said:
definitely some CP 87mm 12.5:1 x-forged pistons. and some eagle rods, but if you got money to spare then get some crowers or better.

Can u run that compression on 93 or 94 octane.

poorboy44 · May 22, 2006

I didnt think eagle had any k24 rods yet, please let me know if they do and a part# cause i didnt see any on their site nad am in need of a set of rods for my k24a4/k20 build

Engine Build: k24a4 Block + K20a2 Head

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