scrubba_16 Posted May 21, 2011 Report Share Posted May 21, 2011 Hey guys, I am trying to mount this L20B into a 620 long wheel base. it originally was a J15 motor. I am in way over my head. I just can't seem to get it lined up or anything. I am using a 5 speed gearbox out of a Ka24 which is a stumpy box and with using my existing mounts and a modded gearbox support x member the box sits really high. all and any bits of help will be appreciated. thanks Quote Link to comment
Gary Posted May 21, 2011 Report Share Posted May 21, 2011 im about to do exactly the same thing :D except ive got a bluebird 5speed which i think is longer got any pics of the problem? i dunno if the engine mount brackets are exactly the same between J and L, how close is the sump to the steering linkage? Quote Link to comment
Wide14u Posted May 21, 2011 Report Share Posted May 21, 2011 i think your trany is going to have a tilt wait for datzenmike to say something he knows all :D Quote Link to comment
Sealik Posted May 21, 2011 Report Share Posted May 21, 2011 You do realize that the L20B leans about 10 degrees to the passenger side...whereas the KA trannie should be sitting about the same the other way? Not sure of the J15 placement in bay Even with a modified x member the pinion angle changes (no problems since no transfer case...lol)....and the tunnel might have to be cut out to address the shifter location.....and bend the shifter to fit....etc...etc. Tried that in my 720 (Z24 to L20B)...not good...I then installed the proper L trannie/bell housing and adjusted the MMs to match the lean....much better. You need a L bell on your trannie Quote Link to comment
datzenmike Posted May 21, 2011 Report Share Posted May 21, 2011 The Z tranny will be leaning to the passenger side and unless you cut into the existing mount it will lift up as it is rotated. I think he said it sits too high. Sealick had this problem too..... ah there you are. Quote Link to comment
DanielC Posted May 21, 2011 Report Share Posted May 21, 2011 I have never done this swap, so I do not know a lot about it. I do know this. J-engines were straight up. L-engines are tilted to the right side of the truck. I do not know if the KA engine was tilted, or not. The L-20 engine may bolt to the KA transmission, but if the KA engine is straight, the transmission will be tilted. I believe you would have a much easier time if you had a l-series transmission with the l-20-B engine, or a KA engine with the KA transmission you have. There is also a possibility you could get a L-engine bell housing to mate the KA transmission to the L-20-B, but I am not an expert on that, or even know if such a part is available. Quote Link to comment
datzenmike Posted May 21, 2011 Report Share Posted May 21, 2011 An L 5 speed front case can, with a few mods, be fitted to a KA tranny to convert it. Quote Link to comment
scrubba_16 Posted May 21, 2011 Author Report Share Posted May 21, 2011 Hey guys thanks for your help. I have a 5 speed L gearbox but when i bolted it up the shifter is in the tray LOL. I have my brother in law who is a mechanic coming tomorrow to help. Well at least I hope he knows what he is doing. I did notice that the ka box is no leaning. tomorrow when it is all done i will post some pics for you guys and i hope that may help any one else. thanks Quote Link to comment
Sealik Posted May 21, 2011 Report Share Posted May 21, 2011 Sure it's a KA trannie....year...? Quote Link to comment
scrubba_16 Posted May 22, 2011 Author Report Share Posted May 22, 2011 yeah sorry it is tranny of a l24 not ka, came in a r30 skyline Quote Link to comment
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