2004 2.7 engine swap question.

Are all the years interchangeable. I have bad rod knock. Easier to find pre 2000 2.7 engine.

Could I just use any 3rz and change valve cover over to accept coil packs and take distributor off.

Am I right or am I wrong?

 

why would you need to? just get a similar or newer year engine so its all the same. and yes for the most part I think any 01-04 or newer 2.7 rear wheel drive motor will work. I believe they switch to coil packs after 00

 

I am considering the same thing. I would also like to know if the wiring harness would have to be changed or would it still work?

Thanks,
Charlie

 

Bump.

 

My 2000 PreRunner 2.7 has coil packs over the spark plugs.

 

it will work as long as you put your trucks wiring harness on it and the coil packs or lack there of because the engines are the same and I think the only thing you might need to swap is the valve covers to have the fittings to bolt the coil packs to.

if yours doesn't have coil packs you shouldn't need to switch valve covers in either case since the socket holes are the same.

the main caution I would add is if its a newer engine then 04 it may have different sensors that would need to be swapped out for ones that match your old engine to match its wiring and ECM. I would never reuse an old sensor you had to remove so buy new ones if this is an issue.

 

I am planning to take my 1997 with distributer and put it in my 2001 which has coils. I plan to swap the valve cover plates. Can I keep the 2001 wiring harness and use it on the 1997 3rz ?

Thanks,
Charlie

 

I am not qualified to answer that but it may be an issue trying to use the older tech with the newer engine, im not sure what mechanism drives the distributor and if the 01 engine has the compatible gear to drive it or not. in this case I think you are better taking the 01 engine wiring harness with the engine and using it as-is with no distributor. you need to speak to a trained mechanic on this issue, try PMing BAMA about it or start a new thread just dealing with this question.

 

Also considering this. Anyone know if this will work? 01-04 engine into a 99 taco 2.7L?

 

the only differences in the engines are, the early ones might have a distributor where later years ones don't, otherwise it shouldn't matter as long as its 2.4>2.4 or 2.7>2.7 because the ECM needs to match the engines but if you are swapping in a 2.7 to replace a bad 2.4 then you should swap out to a matching ECM from the 2.7 if you are going to do that.

but in all honesty im not really convinced its something that would be needed for only a 300cc difference in engines but then im just guessing about that. if I were to do it i would just roll with it and if there were any side effects I would swap ECM later only if need be.

just get the engine wiring harness to go with the engine you find so it has the wiring for the ignition its equipt with

 

Do not swap out the engine to a 2.7. There are too many modifications needed. The block is bigger and the exhaust is different, ONE BIG HEADACHE! Check with your local dealer mechanics and they will say the same thing. It will fit and you can make them match physically but you risk a burning hazard and screwing up a whole lot of other things by swapping it.

 

Didn't know any of them used distributors, I have an early 97 and it has coil packs, not direct coil on plug but it has 2 coil packs with wires running to each of them, so 1 coil pack fires two cylinders each.

 

Here in checklysafornia it depends on your address where I live in co.co. county you have to use same or newer year engine regardless of the motor u put in. as far as the 2.7 I know when I did my hg there are 3 dif heads . in order for it to plug and play with ecm and smog and I have coil over plug water inlet on back of head 4 or 8 port intake

and I believe the cam knock sensor beneath the intake manifold were the pertinent questions to get the right head all of that will matter when you swap motors depending on smog rules etc but looking at the enginge family on the under hood sticker mine is the yffj family I believe are the 4 important letters and the vin numbers .......... If U pretend your buying new head you should be able to figure what you need to look for when buying a used motor. some of that will depend on ur local rules too of course the nmber of things you switch could be more or less depending on rules and what you have in comparison to what your putting in.......... here Cali Air Resources Board has it so its a major PIA there is seperate website to check if its even an approved part for any smog related component from intake combustion to exaust and everything in between...