Does any one know if you can take the head from an ecotec motor and swap it on to a 2.2 non ecotec?
Nothing is impossible given enough time and money. They share engine displacement but not much else.
MasterFlight wrote:Nothing is impossible given enough time and money. They share engine displacement but not much else.
So following that theory, I should be able to slap some heads from an EJ series onto my block, right? Guess I better grab some JB Weld..
To the OP, two ENTIRELY DIFFERENT motors. No interchangeability. Like pointed out, biggest problem is one is OHV, one DOHC. interal castings are different and wouldn't even begins to line up. You'd end up with 3 cams in the motor. It'd be like putting an ld9 head on an le5 block..just not gonna happen.
Just to be a massive pain for everyone, the ecotec we've all come to know and love actually evolved from the old GM 122 family of engines, of which the ln2 is one. Its kind of like how the LT1 and LT5 are related. GM built one, Lotus played around with it until it was completely different. So to answer the OP's question; no you can't, but it has been done technically.
colt45 wrote:Just to be a massive pain for everyone, the ecotec we've all come to know and love actually evolved from the old GM 122 family of engines, of which the ln2 is one. Its kind of like how the LT1 and LT5 are related. GM built one, Lotus played around with it until it was completely different. So to answer the OP's question; no you can't, but it has been done technically.
This is only true to an extent. The GM 122 engine that the ecotec was evolved to was the SOHC in the pontiacs prior to 1995. None of the SOHC's barred the RPO code "LN2". Under this logic, the quad 4 head can technically be mounted to a small block block because GM Developed both engines.
Original Poster: If you want a DOHC engine, you'll need to swap. If your car is 99 or older, you are going to want to swap the LD9 (2.4l twin cam) in. If your car is 00 - 02, you can either swap the 2.4 or the eco. If you really really really want to swap an eco in to a 99 or older, you'll need to rewire the car back to the tail lights.
You also can swap to a 60 degree or a 90 degree v6
EDIT: Looking at another thread, it says you have an 03 (would be nice if you filled your profile out). Why would you want to swap an LN2 (non eco 2.2) block in to your 03 and sit it under your Eco head?
Edited 2 time(s). Last edited Saturday, February 18, 2012 7:30 PM
I dnt want to. My brother has a 01 sunfire thats why I made the thread. So I could see if it was possible for him not me. I love the ecotec wouldn't have anything else. I will fill it out sometime. Do you have any opinions on the injector swap?
i dunno eco injectors that well... I have LSJ's in my 2.4, but thats because i'm running 11:1 compression pistons and .430 lift .222 duration cams, with a fully ported and polished head.
My advice would be: If you run any injector that is bigger than the stock size and psi, make sure you have someone with HPtuners to change your injector constant, or you'll be running pig rich all the time.
Ya that didnt help me at all. Thanks though. About the tuning thing. Couldnt you compensate for the more fuel with more air or just get an aftermarket fuel pressure regulator?
no... and you wouldn't want to if you could. The goal isn't to trick the PCM, and it isn't to supply extra air to match the extra and unneeded fuel, but rather to have the PCM supply the correct amount of fuel, and maintain around 14.7:1 ratio.
Also, to get the correct amount of air to compensate (lets say 27 lb stock LD9 injectors to 37 lb injectors), you'd need to boost the engine.
You have to figure this. The computer is designed to use the stock injectors, putting a bigger injector in, the computer will still treat it like its a 27lb injector instead of a 37lb injector, and will operate it in that regard. When you turn the injector constant down, the computer now treats the injector like its a 37 lb injector and will operate it in that regard, by supplying only the needed fuel (with a lot less effort)
Its simply more efficient to turn injectors down.
Edited 2 time(s). Last edited Saturday, February 18, 2012 8:12 PM
The ecotec 2.2 only has a 10.0:1 ratio.
the 14.7 ratio i referred to is Air to fuel ratio
the ratio you are referring to is Compression ratio, where the pistons are compressing the air 10 times
robert lyons wrote:The ecotec 2.2 only has a 10.0:1 ratio.
stop. right now. you do not know enough to realize why asking if this swap was possible was a good idea. nor the difference between compression ratios and AFR. nor, seemingly, between OHV and DOHC engines.
just stop. do some more research. realize why we're telling you that it's not possible. seriously, you're essentially asking "can i bolt 4.3l v8 heads to a 4.3l v6? they're the same engine..."
JBO Stickers! Get yours today!
The attitude is not necessary.
2.2 ecotec (stock internals) typhoon k&n in take 2 inch drop springs
