They are a straight swap. All you need to do is take out the k40 and put in the k50. If the gearbox is from a ke55 and you're putting it into a ke30 you won't need to cut a hole for the shifter.

only KE70 k40 and k50's have the shifter position further back.

thats awsome guys thanks

 

how about the Extension housings between 4 and 5 speed are not interchangeable Do i need to worry about that? when doing a straight swap with a k40 to k50 from a ke55

shouldnt have to worry about, unless your buying a non complete gearbox.

 

If you have a screwed ke55 K50 and a good condition KE70 K50. you can swap the rear housings, but not between K40 and K50s

ah i c all make sence now thanks heaps il post up on my ride when i do the conversion cheers

ok i found a k50 5spd for my ke30 also there is a 5k motor is there much diffrence between that and 4k i curntley have and 5k?? power wise or other; didnt' no weather to start another thread maybe pm me or point me in right direction where i could make a comparison cheers guys

5K it :P

 

how much are they asking?

500 box n 5k n set of 13s hmmz desions but does 5k have more power? how much? is it worth changing the motor ?

Thats a good price if its all in good nick. I would do it, you will notice the extra torque of the 5k i suspect and would make it a better daily all round.

cheers just dunno the motor sometimes better the devil u know then devil u don't lol. but yeah i want the 5 speed thats for sure 80ks sounds like its reving more then enough and 100 is just stupid seen on other threads 100ks in 4th is around 3900rpm as apose to 3200rpm in a 5spd in a 4k.

 

looked for specs on 4k and 5 k to compare and found this pretty much each motor 2k 3k 4k and 5k go up in 5kw increase over the years.

 

http://en.wikipedia.org/wiki/Toyota_K_engine

Think about it in percentage terms more than just power output.

 

Its a 15% increase in capacity and there will be a corresponding improvement in power and torque. That is the easiest and cheapest hp increase you can do. Everything else will net you a kw here or there and will cost you $$ each time.

yeah i think i will get it thanks for info advice and words of encouragement guys thats all i needed will keep you posted on my progress on my ride thread cheers