Fist off, I would like to say that I am happy to see allot of us these days going in the 1jz route just for the pursuit of power. However if you think about it, where can you get the parts like sensors and all the other crucial parts to make your 1j run at its best? I know you are probably saying (and this is for the first time 1j owners) that you have just gotten yourself into a big nightmare. Say no more, this should be "the" place in the forums for all of us to find sources for our parts for the 1j. yeah you think that most Toyota dealerships would have the parts, that is not truelly the case. If you go now to the one nearest you, they would probably be wondering what kind of engine are you talking about just because they never even knew that the engine existed. Right now, I think this should be the place for people to ask each other for info and sources for there 1j. Hopefully allot of good could come out of this and allot more 1jz's would be out terrorizing the streets.

i got a lot of the small stuff like sensors and electronics from www.jdmenginedepot.com...they are a warehouse that sells clips and motors and are about 30 mins from where i live...i know someone that works there..so when they rip motors out i can pick up some small pieces for a fraction of the price, also im sure jeff from horsepower freaks can give u a hand..he sells a lot of 1jz stuff also...it was harder for me because i dint go to any forums for advice so i had to resource a lot of parts on my own... once i got onto the forums i saw the wealth of information that one can get, unfortunately this was after my swap...though for me i did not run into major problems/setbacks during my swap and the motor ran teh first time it was cranked...so my install was pretty flawless i can say

I'm pretty sure Horsepowerfreaks sells some 1JZ stuff, as does www.driftmotion.com other than that I'm not sure, those are the ones I can think of right now off hand.

What parts are you looking for? We've got intakes and downpipe, map sensors and boost cut controllers for the 1jz. We've also got the common maintainence parts like timing belts & water pumps.

If you're looking for something else just let me know

www.suprastore.com (http://www.suprastore.com) sells parts for the 1jz

its no different if you have a 2jz or a 7m,most of the parts are dealer only anyways.champion toyota can get you all the 1j stuff you need (with many parts in stock).for the most part 2j parts are interchangeable.
keith

cool, this is good so far, beside all that, its just not for me though, this is for allot of other people out theree that are looking for parts too, right now this discusion is looking great since allot of info has came out of it so far, by the way I will keep in contact with you all to see when I can get the parts once my motor comes in. At the mean time, if there is anymore people that have info on locations or distributors that sell the parts, go ahead and post it here, allot of us will benefit out of this info big time. thanks guys.

just about any sensor or part that you have to replace on the 1jz can be swapped with a 2jz part. just about everything on the 2jz is downwardly compatible and will work on the 1jz. as far as the O2 sensor, i dont remember if its 3-wire or 4 wire, but im almost postive its a square plug. if its 3 wire, use the 91-92 7M o2 sensor. those us a square plug with 3 pins. the MKIV uses the same square plug, but 4 pins.

are there any specific parts that you needed to know about?

you guys are just straight out awesome. So far I want to apologize I have been gone for such a long time, as you might not have found out, south florida got hit by wilma and I was basically in the middle of the whole thing. At least the good news is that i got my front clip a day before the storm made land fall which to me must be a blessing from the twin turbo gods, lol. beside all the storm crap, I finally got started with the project but it is not going as good as expected. Since now I lost the space to work on it, it is making it allot more dificult for me to find a place for me to get the engine in the car. I got everything in order and everything is already ready to drop in but until I get the space again, I really cant do much. Damn, this sucks, I want to boost already!

Ok, I got a problem now. I was just about to put on the front bumper from the front clip but found out that whoever had it last time in japan damaged it and now it will not stay on my car. Found out that the half the mounting points for the bumper are cracked or broken off. Anybody have any idea of where I can get the bumper? I got the JDM fog lights, the grill inserts and corner lights removed since they are in great shape and can be reused but I need a bumper. I can look in the junk yard but most of the MK3's they got are 87-88 models and I don't want that bumper, I want to go 89-92 design. If anybody here has a spare one that they wouldn't mind letting go, let me know.

on the sales section...see if anyone is parting a supra, they might be able to help you...im sure they wouldnt mind getting rid of some extra body panels for you

are there any specific parts that you needed to know about?

Actually, EVERYTHING in the bottom end can be used from a 1jz right? Minus the crankshaft. EVERYTHING in the head can be from the 2jz head, oversized vavles, springs, ret. clips, basically everything.

Everything except the camshafts in the head, if you happen to have a vvti 1j then I'm clueless. But the cam gears are questionable from the vvti 2j's, couldn't tell you if they fit the 1j. Since the only difference in the bottom end is the stroke then you can't use the crank or the rods, but the bearings and pistons and wristpins are the same.
P.S. On a really big note, I haven't personally tested these but how found most of the info surfin' the web. Can't promise results but they are what I am going by for my mods. If I am proven wrong by someone really testing this, please let me know. I don't want to buy the wrong part in the future.

P.S. On a really big note, I haven't personally tested these but how found most of the info surfin' the web. Can't promise results but they are what I am going by for my mods. If I am proven wrong by someone really testing this, please let me know. I don't want to buy the wrong part in the future.

I looked up a lot of things online too, but I never remember.

So the stroke diffrence between the 1jz and the 2jz is the crankshaft and the rods?

yes, the 2jz has an 86mm stroke, so the block deckheight is taller than the 1jz. obviously the stroke is longer than the 1jz stroke. this means that the 2jz will most likely use rods that are a different length than the 1jz. it could also be possible that the 1jz and 2jz pistons have different wrist pin heights, but im not sure if this is the case. from what i understand, the 2jz head components will swap right over to the 1jz head, except for the cams. the 2jz cam seal journal and thrust surface are a different diameter and depth. they need to be machined to fit into the 1jz head. i had the specs somewhere, but my machinist may have lost them. ill have to find out. i also did what i could to find the cam measurments for the cams. i know i got measurments from one set of cams, i dont remember if it was the 1jz or 2jz... might have been 2jz.

So, if the pistons and rods don't work out, were would you go to get aftermarket ones?

Or would new bearings, shot peened rods, and full balance be good enough?

typically, the cylinder bores have enough wear on them to necessitate a re-hone. and once you re-hone the bores for new rings, the new diameter of the bore is either at or near the maximum wear limit for standard size pistons and would require an overbore and oversized pistons anyways. best bet is to get new oversized pistons if you are doing a rebuild and start with a clean slate. GReddy makes aftermarket pistons for the 1jz, i beleive titan carries them. there are several retailers that have available 1jz engine internals. i would try to research more for information regarding 2jz pistons. i know the bore is the same, and it could be possible that they share the same wrist pin height and ring pack spacing as well as wrist pin diameter. if this is the case, they will interchange w/ the 1jz. try to do a bit more research, unfortunately, i dont have the answer for that one.

I thought I was reading somewher that someone either used the rods or pistons. I'll see what I can find. Thanks!

if any one needs help getting 1jz parts I have a bunch of connections in okinawa Japan that I can get used parts from and some performance parts.
my email is ericinokinawa@hotmail.com or eric.geisler@usmc.mil

^thanks for the info. thats good to know just in case!

oh word up an inside source...now thats wut im talkin bout

ok, I need a sugestion, I was looking up on the exhaust thread that is here in the forums and took a look at the goliath exhaust system that horsepower freaks has made. So far sounds and looks sick in a ma70 but does anybody have that exhaust system in there jza70? I would like to know how it sounds in our cars because right now I got to get ready to get the exhaust a.s.a.p. and would like to see a clip of one running the system on it (especially if its a 4in) just to get an idea of what I should be in store for. If anybody has this in there 1j's, please give me some feedback on it and if possible post a video of it while running so I can see how it sounds. Apreciate it very much guys.

its no different if you have a 2jz or a 7m,most of the parts are dealer only anyways.champion toyota can get you all the 1j stuff you need (with many parts in stock).for the most part 2j parts are interchangeable.
keith
Will a 2jz intake air temp sensor be compatible w/ a 1JZ? and if so, Does anyone have a part # for it? TIA.

yes, the 2jz has an 86mm stroke, so the block deckheight is taller than the 1jz. obviously the stroke is longer than the 1jz stroke. this means that the 2jz will most likely use rods that are a different length than the 1jz. it could also be possible that the 1jz and 2jz pistons have different wrist pin heights, but im not sure if this is the case. from what i understand, the 2jz head components will swap right over to the 1jz head, except for the cams. the 2jz cam seal journal and thrust surface are a different diameter and depth. they need to be machined to fit into the 1jz head. i had the specs somewhere, but my machinist may have lost them. ill have to find out. i also did what i could to find the cam measurments for the cams. i know i got measurments from one set of cams, i dont remember if it was the 1jz or 2jz... might have been 2jz.
So if you had a 1JZ and you rebuilt it could you use a 2JZ Crank and rods, etc in the 1JZ block it self? or is that way under simplifying that statement?

So if you had a 1JZ and you rebuilt it could you use a 2JZ Crank and rods, etc in the 1JZ block it self? or is that way under simplifying that statement?

Pretty sure it's not that simple. Just use the whole 2j block.