doesnt the tsx engine have the same head as a rsx-s?

 

im not sure.

 

the tsx and type s head are pretty similar.. Only reason to put a type s head on a k24a2 from a tsx is if you have one ready to go and you don;t want to deal with making the tsx head work... The tsx head basically needs one port welded ($40) and a manifold that will work with it.

As far as the way VTEC works, both heads work the same way with the 3 lobe cams etc... So, if you don;t have a type s head laying around.. no need to buy one if you have a tsx head.

 

if you use RBC intake manifold, then you don`t must need any welded port into TSX head....

 

if you use RBC intake manifold, then you don`t must need any welded port into TSX head....

are you sure about that?

So this is the flange for the RBC/Euro R mani... is the port on the left the coolant port? and is that the same place that it is on the TSX mani?

 

so then theres no point throwing on a k20a2 head on a k24a2 tsx block, if the heads are pretty much the same, if the difference is really just to weld one hole, then keep the tsx head.....im very new to k-series, correct me if im wrong but tsx and crv share the same block right ???, there both k24's, crv is k24a1 and tsx is k24a2, any differences between the 2 blocks ???...also, can f20c head fit k24 ???....sorry i know im a newb

 

so then theres no point throwing on a k20a2 head on a k24a2 tsx block, if the heads are pretty much the same, if the difference is really just to weld one hole, then keep the tsx head.....im very new to k-series, correct me if im wrong but tsx and crv share the same block right ???, there both k24's, crv is k24a1 and tsx is k24a2, any differences between the 2 blocks ???...also, can f20c head fit k24 ???....sorry i know im a newb

the blocks are very similar. the TSX has slightly higher comp pistons and I think the rods may be a little stronger as well...

Not really sure though

 

Yes, no point unless you have one around (type s head).

The k24a2 is different than the CRV. Of course the stock pistons/rods are different.. the cranks should be pretty similar..

The bare blocks has a small minor difference. The TSX girdle has a raised ridge or hump right down the middle. The CRV K24A1 block does not have this ridge.
That makes a small difference if you want to use the k20a2 oil pump that doesn't have the balance shafts. The CRV will accept the k20a2 oil pump with no problems.. THe tsx block will need a small amount of work to fit..

 

wut do u suggest type of head i put in it to get close to 250-300 hp?

 

wut do u suggest type of head i put in it to get close to 250-300 hp?

the TSX head will be fine...

 

this is an actual tsx manifold. i think the second port just acts as an overflow. it lines up with a hole on the block that goes in about 2 inches and stops.

 

here is a pic of my tsx head with the coolant port welded with the prc ITR mani. the hole goes no where so i just left it open. sorry i couldnt take any better pics but my motor is just about completely assembled and going in on sunday.

 

and you have to find a way to block the passage on the back of the thermosta housing since it doesnt have anywhere to go.

the second pic is my car from before my swap. looks the same except 5 lug now with gunmetal PC stock rsx wheels. so basically the same look

 

very nice... Thank You very much sir.

So from the pictures I would venture to say that the Euro R mani is a direct bolt on to the K24a2 TSX block... and retains the OEM coolant passage that everyone has been welding shut.

It looks like your ITR mani uses 1 less manifold bolt than the TSX or Euro R mani does.

Well if I don't go ITB's I will definetly be getting one of these mani's even if I do have to find some custom way to get a throttle body on there, since none of the OEM units are a direct bolt on...

:up: :up: for civictype-S

 

and you have to find a way to block the passage on the back of the thermosta housing since it doesnt have anywhere to go.

the second pic is my car from before my swap. looks the same except 5 lug now with gunmetal PC stock rsx wheels. so basically the same look

never cap that, it's your water recirculation port, that goes to your heater core, each engine needs a continuous cycle of flow....

 

then what am i supposed to do with it? it goes no where. the hose that comes off the back where i capped it genneraly lead to the top radiator hose housing. on the tsx block there is no port for it. its a hole on the head that goes nowhere.

 

the first pic is of the tsx manifold that contains the hose needed to return to the thermostat. the one below is that of the rsx. it basically comes straight off the head, not the manifold. the second pic is the same 2 items upside down. you can see that on the rsx one the hole bigger that bolts up to the head. there is a small hole that the hose is connected to that returns to the thermostat housing. that comes staright off the top radiator hose.

the third picuture is the backside of the tsx top radiator hose connection. it is to show only the one opening that goes into the head. it does not have a separate port for the hose to return to the thermostat.

the 4th pic shows that there is not a way to connect that hose to the port on the head without some custom fabrication

 

that is my socket adapter in the port that you can see from the front of the head. that is usually covered by the top radiaotor hose housing. i just wanted to show that it goes in about 3 inches and stops. it then goes into the housing and stops. it is the round hole on the bottom. you can see it goes nowhere. some one please help

 

are you sure about that?

So this is the flange for the RBC/Euro R mani... is the port on the left the coolant port? and is that the same place that it is on the TSX mani?

Yes `im sure, I`m using RBC manifold and TSX head. It`s with very well.

Second port from left side in TSX manifold , it is hooked up port from EGR, it is not important. Important is only egg size port for coolant, and this port is in these same please in TSX head and RBC Manifold.....

 

cool looks like we found the perfect mani for the TSX. The only problem is that there is no OEM throttle bodie that will bolt up to that manifold that is not a drive by wire throttle body (the throttle body we can not use when we swap one of these motors in to the older chassis).

Maybe I will look into making an adapter plate to fit an RSX throttle bodie on to this mani, which would probly also work with the stock TSX manifold.

 

you can use RSX TB with RBC manifold,

you need bore to bigger diameter bolts hole in manifold,

and use smaller bolts , then you have extra move up,down , left, right throttle body to center air big hole.

works very good, and you don`t must need special adaptor.

Don`t worry about IAC, also works good.

 

Yes, no point unless you have one around (type s head).

The k24a2 is different than the CRV. Of course the stock pistons/rods are different.. the cranks should be pretty similar..

The bare blocks has a small minor difference. The TSX girdle has a raised ridge or hump right down the middle. The CRV K24A1 block does not have this ridge.
That makes a small difference if you want to use the k20a2 oil pump that doesn't have the balance shafts. The CRV will accept the k20a2 oil pump with no problems.. THe tsx block will need a small amount of work to fit..

now clue me in here. why would you want to put a k20a2 oil pump on a k20a1? what is the advantage to this if any? and whats the difference between the accord, crv, and the tsx k24 block. i believe the heads are different but are the cranks and rods and pistons interchangeable? Does the tsx block have oil squirters?

 

ive been looking for an k24a2(tsx) motor, i cant find one. where did you get yours from?

 

ok so I have a k24a4 and I was wondering how much does the k24a2 head run? how much does the piston run? can I run lower compression piston then tsx like about the same compression as the accord for F/I later on *as I want to pump regular 87 gas at most maybe 89 cuz it looks like gas is going up again*? Also do I have to swap the oil pump? why do people do it?

All in all would you say it is cheaper to do a head swap then a motor swap? I can get a k24a2 for 2200shipped

I know that the harness and hondata would probably run me around 1350-1450 + another 800 for tuning.

 

the blocks are very similar. the TSX has slightly higher comp pistons and I think the rods may be a little stronger as well... Not really sure though

I know im mad late but i think the k24 head is way heavier with its block than the k20 on the k24 head. Plus the k24 sits higher at 9.1” .K20 only sits at 8.3” and ur gonna spend less building the k20 than the k24