2003 Civic Engine Differences

[slvrcivic03]

Just wondering if anyone knows for sure the major differences between the 2003 civic HX and EX engines.

 

[03civictour]

2003 civic HX
117 hp @6100 RPM
111 ft-lbs.@4500 RPM
curb weight: 2436 lbs.

2003 civic EX
127 hp @ 6300 RPM
117 ft-lbs.@ 4800 RPM
curb weight: 2555 lbs.

They are both 1.7 Liter engines, this comparison was done with both 2dr coupe. I assume the sedan is the same with the exception of curb weight.

 

[slvrcivic03]

Will EX parts work on an HX since theyre both vtec engines?

 

[Jersey8]

http://www.clubcivic.com/index.php?pageid=specs7

you could have found the answer to your question had you looked around a little bit first

 

[slvrcivic03]

sorry i have been looking i just couldnt find a definite anwser whether or not i could use any ex part on an hx. there's a lot of contradicting info on the hx specs.

 

[Jersey8]

since their both d17 blocks with the same displacement, # of valves, etc. i don't see a reason why the parts shouldnt be interchangeable

 

[jonathan2006]

just swap heads

 

[slvrcivic03]

what all would i need? would i need a new ecu also?

 

[jonathan2006]

a complete d17a2 head and the ecu

 

[mik3boost]

I think, you dont need the ECU, you can use s V-AFC, that will be fine.

But the thing is I dont know if this work worth...

 

[ES1 Pnoy]

Will EX parts work on an HX since theyre both vtec engines?

out of curiosity men does HX really has Vtec? I thought only EX and Si has vtec..just wondering

 

[Buttah02]

Alright quick question for all of you out there a 01 civic ex sedan is it an es1 of es2 because if you look at the link that JERSEY8 posted it says that

ES1 1.7L USDM All 4-door DX/LX
ES2 D17A1 USDM All 4-door EX

 

[Buttah02]

Pay good attention to the Chassis Code and all of the engine sizes and to the valve train