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sQwiReL bOi said:
can any1 confirm that a k20a2 head is the same as the k24 (tsx) head?
k24a2 (TSX) head is NOT exactly the same...its my understanding that the TSX head has EGR (exhaust gas recirculation) porting. also ehe coolant from the head on the Accord, TSX and element comes out the side of the head. The RSX, Civic Si, and CRV have the coolant exiting the front of the head.

besides that the heads are very similar. The TSX uses a unique IM that connects to a unique (drive by wire) throotle body...but you asked about the heads only

sQwiReL bOi said:
also... to destroke a k24 motor u can simply use a k20a2 crank?
thxs
lol - if you were to use a k20a2 crank (86mm stroke) will make it a 2044cc motor compared to a stock K20 1996cc motor...worth it - umm - NO (when you look at custom pistons, replacing the bearings etc...

many have theorized using a F22c crack (90.7mm stroke) will make it 2140cc...from what I have heard the crank will fit...but its almost impossible to make it fit like OEM (~ basically leading to major problems)

a few companies claim the offer destroking cranks for the k24 - to my knowledge no a single motor has been built that actually lasted :?
 

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Discussion Starter · #3 ·
so do u think that the k24a2 head would be worth keeping or swapping out for the k20a2 head? power wise would the k20a2 head make more power?

or would the k24a1 block wit a k20a2 head be a lot simplier to work wit?

does the k24a1 have a drive by wire? cuz the drive by wire is new to me and im tryin to figure out how the wiring would work on that. unless they sell the wiring harness already for that. thxs a lot
 

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If you have the money i would go for the k20a2 head it will make more power.

The k24a1 does not have drive by wire. Only the K24a2 (TSX) has the drive by wire.

I will try and get some shots of both the TSX head and the Type S head.
 

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Discussion Starter · #5 ·
so wats the point of gettin a tsx motor when ur juss ganna swap out the head for a type s? wouldnt u juss do that wit a crv block? cuz i was readin up that the tsx head is some wat like a rsx... so would it be better to juss get a crv block wit a rsx head instead of a tsx?
 

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sQwiReL bOi said:
so wats the point of gettin a tsx motor when ur juss ganna swap out the head for a type s? wouldnt u juss do that wit a crv block? cuz i was readin up that the tsx head is some wat like a rsx... so would it be better to juss get a crv block wit a rsx head instead of a tsx?
apparently the TSX has a stronger crank and bottom end compared to teh CRV block...

see the differences in redline and power output of both engines?
 

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HeyYouItsEric said:
Teh TSX also has higher compression to my knowledge.

CRV: 9.6:1
TSX: 10.6:1

Correct me if im wrong.
That compression difference could be due to head design alone.

Nobody seems to be able to anwser the question whether all K24 bottom ends are the same or not. I would imagine the pistons must be different in the TSX than the other K24s though.
 

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tinkerbell said:
apparently the TSX has a stronger crank and bottom end compared to teh CRV block...

see the differences in redline and power output of both engines?
If that's the case, I wonder if TSX rod bolts and valve springs are better to use in a K20A for safely higher reving over 8600rpm....hmm...
 
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