attn: nis720

1980-1986 Datsun 720 forums. All 720-specific topics and discussion can be found here.
User avatar
PEZi
Posts: 21111
Joined: Thu Dec 11, 2008 8:21 am
Car: Mitsubishi Lancer Evolution IX Mitsubishi Racing Edition
Location: Pikes Peak, CO
Contact:

attn: nis720

Postby PEZi » Wed Feb 11, 2009 2:58 pm

more or less anyone who's interested in this.

i found a ka 240 motor at a salvage yard around denver... this place is awesome as far as pricing

i can get the ka including all pumps and such for $200

i didn't check the miles but it looks to be in AWESOME condition.

how much would it cost me to rebuild the engine and how much is it in parts would it cost to mount it (ie tranny and clutch?)

and what all else is needed?

all help is great and thanks in advance


User avatar
breadbox
Posts: 8550
Joined: Tue Oct 17, 2006 4:09 pm
Car: Red 89 240sx,Black 89 Koop, White 84 720 4x4KC
Location: Va Bch

Re: attn: nis720 (PEZi303)

Postby breadbox » Thu Feb 12, 2009 9:07 am

What did you grab the KA out of? 240sx or Truck?

As far as mounting I believe you must make a bracket for the driverside motor mount. IIRC

I would say the cost of rebuild is at least a timing chain kit and a gasket set which might cost around $250-300 shipped to your house and then around me it is usually $900 for the rebuild. Then resurfacing flywheel $35. New clutch $100 or so.

Make sure you have the full engine harness and ecu. I know in my 240sx with a KAe I can use either 5spd or auto ecu (some one told me the auto ecu on a 5spd makes more HP from the different fuel maps.)

User avatar
PEZi
Posts: 21111
Joined: Thu Dec 11, 2008 8:21 am
Car: Mitsubishi Lancer Evolution IX Mitsubishi Racing Edition
Location: Pikes Peak, CO
Contact:

Re: attn: nis720 (breadbox)

Postby PEZi » Thu Feb 12, 2009 9:18 am

yeah its out of a 240... i'm thinking i'm probably gonna skip it for now due to money

if its still there when i get the money i'll do it

User avatar
breadbox
Posts: 8550
Joined: Tue Oct 17, 2006 4:09 pm
Car: Red 89 240sx,Black 89 Koop, White 84 720 4x4KC
Location: Va Bch

Re: attn: nis720 (PEZi303)

Postby breadbox » Thu Feb 12, 2009 10:00 am

What is your reasoning for the swap? Just to have a newer FI motor?


User avatar
PEZi
Posts: 21111
Joined: Thu Dec 11, 2008 8:21 am
Car: Mitsubishi Lancer Evolution IX Mitsubishi Racing Edition
Location: Pikes Peak, CO
Contact:

Re: attn: nis720 (breadbox)

Postby PEZi » Thu Feb 12, 2009 11:36 am

yeah i've been debating on getting a new carb or FI

the reason i wanted FI was so in the future i could turbo it but i think it'll be much more reasonable to just go with the carb

User avatar
breadbox
Posts: 8550
Joined: Tue Oct 17, 2006 4:09 pm
Car: Red 89 240sx,Black 89 Koop, White 84 720 4x4KC
Location: Va Bch

Re: attn: nis720 (PEZi303)

Postby breadbox » Thu Feb 12, 2009 1:02 pm

Personally I would love to replace the Z24 with a KA24, but it does seem like a quite a daunting task.

mmmm boost.

User avatar
nis720
Posts: 133
Joined: Fri Feb 17, 2006 11:46 am
Car: 86' Nissan 720 truck / 06' Silverado truck
Location: Compton, CA
Contact:

Re: attn: nis720 (PEZi303)

Postby nis720 » Thu Feb 12, 2009 5:15 pm

I used a KA motor out of a truck for the oil pan sump location. The 240sx motor has front sump and you interfere with the sway bar and steering linkage.

If you get a bare long block from a truck you can pretty much fit most of the 240sx parts onto it. The main components needed are the 240sx intake (complete) and engine harness. I took a 240sx fuse box to get the mating plugs to the 240sx engine harness and spliced it into the truck. So if I decide to go KA24DE or SR20DET (not likely) I have the plugs intact and can swith the proper wires.

User avatar
PEZi
Posts: 21111
Joined: Thu Dec 11, 2008 8:21 am
Car: Mitsubishi Lancer Evolution IX Mitsubishi Racing Edition
Location: Pikes Peak, CO
Contact:

Re: attn: nis720 (nis720)

Postby PEZi » Thu Feb 12, 2009 8:29 pm

thanks man... i had no idea about the differences between the two

crazy enough there is a ka block from a truck also laying in the lot but i'll have to look into as to condition... then i can pull all the other stuff off the 240

User avatar
nis720
Posts: 133
Joined: Fri Feb 17, 2006 11:46 am
Car: 86' Nissan 720 truck / 06' Silverado truck
Location: Compton, CA
Contact:

Re: attn: nis720 (PEZi303)

Postby nis720 » Fri Feb 13, 2009 6:06 am

Well if you get the truck block and oil pan you should be Ok. The head will swap from a 240.

destroyyourmind
Posts: 557
Joined: Mon Nov 19, 2007 4:54 pm
Car: 89 240sx hatch ka24de. 91 240sx hatch.
Contact:

Re: attn: nis720 (nis720)

Postby destroyyourmind » Fri Feb 13, 2009 7:29 am

my friend swapped a ka24de from a 240sx I sold him the motor and truck runs great he custom fabbed a oil pan made the motor mounts and the shifter is like a half a foot back because of the ka tranny he did the entire swap in a weekend. if I remember it was 80' 720 or 81'.

2kredz3
Posts: 150
Joined: Fri Apr 18, 2008 7:56 pm
Car: 1984 Nissan 720
Contact:

Re: attn: nis720 (PEZi303)

Postby 2kredz3 » Sun Feb 15, 2009 11:38 am

I was thinking about the ka24 swap but came across the SR20det, you can pick engine and trans up for like 1500 with all you need to drop it in (except motor mounts and a different driveshaft)


Return to “Datsun 720”