DE head on E block swap

[seajrl1]

I want to build a KA24DE-T but the only DE motor I have put a rod thru the side of the block.. I have a few E motors so I want to do the DE head swap.. but every thing I have read about the swap people are talking about the front cover as the prob. But I took everything apart and if I swap the crank (E crank is about 1” longer for the E oil pump) and then all the timing stuff everything fits and should work unless I’m missing something… the only thing is the E block sump tube is runs thru the block can anyone confirm that’s the only thing its used for?

Oh I planed to plug it or tap that passageway for my oil return line..

Thanks Jacob

[sean8564]

It would be easier to buy a KA DOHC Motor At a Local yard. This will save you some headach and money I sold my KA DOHC for 250 Dollars and I saw them in the junk yards here for around that price with transmissions.

[seajrl1]

why would it be easier if i have all the parts... I just am not sure if that KA24E sump tube in the block is connected to anything else. and i can get another DE motor but i don't really want to spend the money... if its just as easy as swaping the front cover and crank and oil pan and head... i can get E motors for free all day long

[jp]

hey Im going to as you a dumb question how did you get the crank pulley off i tryed every thing to get that bolt off and it won't budge

[eddiec]

run some fluid through that alley and see where it comes out. or maybe blow some compressed air through it.

i dont know where that passage leads, thats just how i would find out where it goes.

[DaydreamDrifter]

That posrt on the front of the block is an oil passage, and it requires a special seal there and also right above it is another one. You have to have these seals and the correct timing cover SOHC to match the blcok in that aspect. As for the hole in the oil oan area, I have no idea what it is. Explain why you would have to swap the SOHC crank out, isn't it already in a good block?

[robertwb70]

I think the bigger concern is that the cooling passages don't line up if I remember right they are on opposite sides?just use the SOHC front cover since that works for sure

[seajrl1]

hey Im going to as you a dumb question how did you get the crank pulley off i tryed every thing to get that bolt off and it won't budge

i used a impact gun to get the bolt off if you don't have that like i did last time i used a bolt and a wrench to lock the flywheel so i could put the torque on that bolt... then a pulley puller or if you are lucky it might just slide right off..

[seajrl1]

run some fluid through that alley and see where it comes out. or maybe blow some compressed air through it.

i dont know where that passage leads, thats just how i would find out where it goes.

i forgot to mention that i did that and it flows right thru there... i'm just afraid that it might also lead some where else but i don't know why it would

[FliMSiCaL]

impact wrench for crank bolts = required most of the time....air tools make life soooooo much easier

[seajrl1]

That posrt on the front of the block is an oil passage, and it requires a special seal there and also right above it is another one. You have to have these seals and the correct timing cover SOHC to match the blcok in that aspect. As for the hole in the oil oan area, I have no idea what it is.

that hole is where the SOHC oil pump sump tube bolts up… the oil pump sucks oil up from there thru the block and into the pump then out into that top hole and into the filter... so with the DOHC cover and pump that lower hole is useless... or that’s my theory

Explain why you would have to swap the SOHC crank out, isn't it already in a good block?

yes it is but... the SOHC crank is about one inch longer for the SOHC oil pump and gear and the DOHC front cover is shorter and well you can't bolt the pulley unless you make a shim... i will take pics and show you what i mean..

[seajrl1]

I think the bigger concern is that the cooling passages don't line up if I remember right they are on opposite sides?just use the SOHC front cover since that works for sure

i just doubled checked on that one and they line up... you are talking about the water pump right

[dragka24]

seajrl1,

first of....that block is not a ka24E....E blocks dont have crank girdles.....DE blocks do....if you are to use a E block use the timimg cover from the E block so you wont have to mdoifiy that much and only a little plate for the slight misalignment bettween the DE head and the E valve cover......other than that it should be ok.

[DaydreamDrifter]

seajrl1,you are to use a E block use the timimg cover from the E block so you wont have to mdoifiy that much and only a little plate for the slight misalignment bettween the DE head and the E valve cover......other than that it should be ok.

I meant to say that previously. Damn.

[cojoe240]

Whats up man its good to see someone else atempting this swap. I will be keeping up with post, good luck.

[nismopu]

whats to say he didnt just swap the girdle from his de?

[elgarvo616]

i wouldn't be turboing this unless you have some real low copression pistons. the DE head on the E bloack gives you something like 11.7-1, which is bad for boost

[deviousKA]

All 240sx ka's have main cap girdle, both sohc and dohc.

You should use your sohc lower timing cover if you are doing a headswap, and modify the upper portion to mate to the dohc upper cover.

[TrueSlide]

Getting the KA crank bolt off is easy as pie.

5th gear and a BIG *** iron pipe for leverage.

+1 KAs have a girdle, etc. etc. What made you think they did not?