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S13 Ka24e swap


willz

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I recently picked up 2 KA24e's from s13's this morning for $150. Ones got a spun bearing and the other has a stuck lifter/valve. He also included a brand new felpro gasket kit, arp head bolts, wiring harness and ecu etc etc.

 

planning on putting one of them in my 78' 620, currently has the 4 speed.

 

I've done some reading around the forum and have come to a couple issues and questions.

 

Things I need(?):

 

Oil pan needs to be swapped for a 2wd truck pan for clearance issues, or "custom fit" aka hammer time the s13 pan.

 

Redye's engine mount kit

 

A transmission.... no idea

Not sure what clutch or flywheel to use either, I've read some about driveline needed to be whacked down using the s13 transmission? But all I have currently is the stock 4 speed.

 

Have the starters for both motors

 

 

it looks like most people do the truck motors and so the process is a little different so I'm trying to get a list of all the things I need to complete the swap.

 

55A09E23-A122-4B90-BD92-23E503AA5AA6_zps

462E7F99-6E59-4E70-8FBD-55C5830E398C_zps

116E38B0-EB4B-44F4-9D35-9C0E574C78D1_zps

D1CAA5D6-059B-42AB-AD3F-79D3C7F4E93E_zps

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Good to know! I was worried because I read some stuff about how the starter mounts differently between the cars vs the trucks.

So a short 2wd tranny from a 720.... is that found in the standard cab or the extended or longbed models?

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I believe it's a standard cab. I'm no expert in that area.. but I own one. Starter mounts a bit different. The 720 tranny is threaded and so is the starter motor. I'm going to drill out the starter holes and just bolt through it to the bell housing.

 

Note, the short 4x4 720 is the same, except no speedo output on the tranny.

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Aha! I'll probably just drill them out as well.

 

So:

 

Flip center link,

2wd oil pan

720 short trans, drill out mounts for starter (or tap)

Redeye's mounts

 

 

 

 

That seems way too easy

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S13 engine has a crank girdle so doubtful the truck pan will fit it even with a Russian screwdriver. You may have to section the pans and weld together to get the rear sump.

 

You can use your current 720 transmission, S13/D21 trans are both too long.

 

S13 engine is much heavier than the D21 E engine.

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S13 engine has a crank girdle so doubtful the truck pan will fit it even with a Russian screwdriver. You may have to section the pans and weld together to get the rear sump.

 

You can use your current 720 transmission, S13/D21 trans are both too long.

 

S13 engine is much heavier than the D21 E engine.

I don't have a 720 transmission, I've got a 620 with the 4 speed.

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So I'm at:

 

720 2wd tranny, im not sure of the differences between the models and years if they had different length trans

 

Modify the oil pan

 

Flip center link

 

Engine mount set from redeye

 

And that should be it?

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The short 2wd are harder to find but i believe they are all before 84, but that's just my experience. And not all pre-84 will be short.

 

DMike might actually have real details on what was available when.

 

It doesn't matter though if you already have to modify your driveline. Just get what's available.

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you can mount up your current l style tranny it will work but the shifter will be pointed into your leg. 

just remember to use the same clutch/ throw out bearing. Grind the pin off the ka crank to mount an l series flywheel.

 

I was running a 280zx 5 speed off my kade for a time and i fabed up a custom passenger side motor mount to clock the engine @ 12 so the trans was only about 15* to the driver side.

 

Not the greatest idea but it works.

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So I'm at:

 

720 2wd tranny, im not sure of the differences between the models and years if they had different length trans

 

Modify the oil pan

 

Flip center link

 

Engine mount set from redeye

 

And that should be it?

 

If you modify the pan you won't need to modify the steering. It's a one or the other thing. 

 

 

 

Is there a particular year I should be looking for?

 

 

Any 720 5-speed with the Z series motor that is 31.5" long. Basically every year 720 but a 1980 with the L series. 

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