K Series

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K Series

Postby Brevin » Wed Apr 19, 2006 6:00 pm

Posting on behalf of my brother

Well, he's got an old school 1982 RWD Starlet sitting in his garage and he's wondering what to do with it.
The motor is a 2k and has just blown up. He was speaking to a friend with a fair bit of knowledge about these engines and he has said to put a 7K in it.
I've never heard of the bloody thing before. But after a bit of research i found they are indeed 1800cc out of the likes of Toyota Vans.

What i/he want to know is a) are they injected. b) Do they share the same mounts as the other K series (expecially the 2K) c) Could i expect resonable power out of it.

I, myself will be doing the swap for him and i don't really want to be changing mounts and whatnot because im not the most handy man with a welder. And i'm not a fan of the "put a 4ag / rotor in it." I like to be different.
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Postby AE85coupe » Wed Apr 19, 2006 6:24 pm

i was wrong, there are lots of 7ks around
could find a 5k, 1500cc, found in some old coronas and old vans, the mounts from the starlet will fit one
Last edited by AE85coupe on Wed Apr 19, 2006 7:59 pm, edited 1 time in total.
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Postby Dell'Orto » Wed Apr 19, 2006 6:41 pm

Yeah, there are 7K powered things around, but they're still fairly new (ie mid 90's) and likely to be expensive. They're not a particularly great option to modify, being such a long stroke motor. That extra height will probably cause issues with crossmember clearance and bonnet closing.
A 4k will be enough of an improvement over a 2k anyway :lol:
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Postby Brevin » Wed Apr 19, 2006 7:00 pm

I've managed to find one, and the bloke reckons if you whipp the sticker off you couldn't tell the difference between that and a 4k.

Surely the same mods that can be done to a 4K can be done to a 7K though, right?

Clearance isn't an issue really... be able to manage to "fabricate" it so it can fit
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Postby Lloyd » Wed Apr 19, 2006 7:19 pm

Few 7Ks around, workmate is just in the process of buying one to turbo in his KE20. The "sticker" is actually stamped into the block, shouldn't be much to restamp it however. You'll find the carby one in pre-12/98 Liteace type vehicles, after that they went injected. Seemingly just under the 80hp mark standard
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Postby Dunny » Wed Apr 19, 2006 7:57 pm

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Postby Bling » Wed Apr 19, 2006 8:03 pm

HRT wrote:Few 7Ks around, workmate is just in the process of buying one to turbo in his KE20.


I THINK I heard the rumour that the rods in the 7K arent suitable for turboing, rather thin I think I read somewhere, could be wrong tho, just thought i'd mention it
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Postby Jebus » Wed Apr 19, 2006 9:50 pm

As for 7K rods, the big end is bigger than other K series, but they are quite a bit thinner, and not overly easy to replace like a more common model. However they wont be considerably weaker than 5K rods, and if it is it wont be by much. Rods arent really a thing K's are renound for throwing, so why not, not ideal for a max horsepower build, but more than ample for your usual K series turbo setup. People been talking about doing the turbo 7K thing for a while, id really like to see less posts on forums about it and some people building them.
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Postby Lloyd » Wed Apr 19, 2006 10:22 pm

I'll take some pics if he does it. 5K-T setup is all done and running already and I think he is just planning a little bottom end freshen up and putting it in place of the current 5K.
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Postby drftnmaz » Thu Apr 20, 2006 12:13 am

7k rods seem to be rather thin but i'm sure there alright for n/a use. the biggest thing i think will hold you back in getting porformance out of a 7k is the head. you can only port it so much and only put so big valves in it, i dont think you can get it to flow enough for a 1800cc motor to get good performance. BUT it all depends what your after... i'd gladly buy one if i could get a injected one cheap enough but wreakers seem to want about $1300. thats the same as buying 4or 5 5k motors

they are taller so you may have to trim your crossmember
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Postby Brevin » Wed Apr 26, 2006 1:13 pm

Quick question in regards to these engines,
Had a heated discussion about the K series engines and whether or not they came frontwheel drive.
Could any one confrim or deny?

Also, the EP? starlets (first of the FWD) what is the engine code on them?

Appreciate it.
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Postby Dell'Orto » Wed Apr 26, 2006 2:00 pm

Nup, afaik all K series are RWD. EPxx starlets will have 2E engines.
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Postby vhpacer » Wed Apr 26, 2006 3:27 pm

A 3t from a corona is a good option. Fairly easy to fit, and with some twin carbs you'll have a fun wee car for bugger all $$.

Surely someone will be able to knock up some mounts and a crossmember for cheap. I also heard that you can use some factory mounts and crossmember, dunno what they are though.
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Postby fangsport » Wed Apr 26, 2006 5:55 pm

vhpacer wrote:A 3t from a corona is a good option. Fairly easy to fit, and with some twin carbs you'll have a fun wee car for bugger all $$.

Surely someone will be able to knock up some mounts and a crossmember for cheap. I also heard that you can use some factory mounts and crossmember, dunno what they are though.


the 3T would almost bolt straight onto the mounts, but there would be clearance issues on the firewall. i did have a set of 3T>ke70 mounts lurking somewhere, the only difference from the factory mounts was an allowance to re-position the motor slightly forward.
seriously looking at putting one in my bugeye, maybe with a hairdrier added for sh!ts and giggles.
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Postby mr pad » Wed Apr 26, 2006 6:01 pm

7k done up (turbo'd) or even worked with cams etc would be damn cool. Not many of them around and yeah, bit different from your average 4age etc...

Have driven on (in newer 1996 hi-ace.. or town-ace.. dont remember) and the difference between a 4k, or even 5k, was quite a bit, heaps more torque, and still revved its titties off when cold :lol:

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Postby fangsport » Wed Apr 26, 2006 6:05 pm

mr pad wrote:7k done up (turbo'd) or even worked with cams etc would be damn cool. Not many of them around and yeah, bit different from your average 4age etc...

Have driven on (in newer 1996 hi-ace.. or town-ace.. dont remember) and the difference between a 4k, or even 5k, was quite a bit, heaps more torque, and still revved its titties off when cold :lol:

GOOD FOR DRIFTS AU.
isn't the 7K too tall for some installations i.e kp starlets and some ke corollas??
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Postby mr pad » Wed Apr 26, 2006 7:31 pm

fangsport wrote:isn't the 7K too tall for some installations i.e kp starlets and some ke corollas??


may well be, but I have seen it done in a old ke so...and have read of others...
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