DJames68;520 Posted February 9, 2012 Report Share Posted February 9, 2012 Hello, I have a project going with a 68 520 pickup. I have the stock motor in it which is just too weak. I would like to replace it with something more powerful. Im looking to keep the gas mileage good and not looking to make it super fast or anything, I drive canyon roads quite a bit and just need a little extra juice. Is their any older Datsun motor that is compatible, so I would not have to make new engine mounts or get a new tranny? If not any recomendations on a kit? Any suggestions on replacement motors(or possible upgrades to the current motor for extra horsepower) are much appreciated I'm pretty much clueless at this point. Thanks! -Andrew Quote Link to comment
nismo dr Posted February 9, 2012 Report Share Posted February 9, 2012 If not any recomendations on a kit? ollz at a "kit" I'm pretty sure you have to change just about everything in a 520 to fit another series engine, but am not totally positive, Quote Link to comment
Z chopper Posted February 9, 2012 Report Share Posted February 9, 2012 people have used an A series to replace the J series in the 520, like an A14 and it still look very simular, though some have shoe horned an L series or an SD series engine. look up cahoon he has abn SD engine in his 520 Quote Link to comment
K_trip Posted February 9, 2012 Report Share Posted February 9, 2012 How much money are you willing to spend? How much work are you willing to do, etc ... Here's a V8 swap ... http://community.rat...-of-the-521-v8/ Maybe you could go beyond this, but at some point one has to wonder why. Quote Link to comment
Bob3 Posted February 9, 2012 Report Share Posted February 9, 2012 . Anything is possible if you work at it. Click HERE to see what I did to my 520 to make it faster, oh and handle better too! . Quote Link to comment
flatcat19 Posted February 9, 2012 Report Share Posted February 9, 2012 ^ Want to make the guy just give up. Bob? Kidding. Perfect example of what can be done with enough desire. Quote Link to comment
nismo dr Posted February 9, 2012 Report Share Posted February 9, 2012 Is their any older Datsun motor that is compatible, so I would not have to make new engine mounts or get a new tranny? you gentleman seem to be missing this sentence Quote Link to comment
DJames68;520 Posted February 10, 2012 Author Report Share Posted February 10, 2012 Looks like Ive got my work cut out for me...or I can just drive real slow ha Quote Link to comment
datzenmike Posted February 10, 2012 Report Share Posted February 10, 2012 Hello, I have a project going with a 68 520 pickup. I have the stock motor in it which is just too weak. I would like to replace it with something more powerful. Im looking to keep the gas mileage good and not looking to make it super fast or anything, I drive canyon roads quite a bit and just need a little extra juice. Is their any older Datsun motor that is compatible, so I would not have to make new engine mounts or get a new tranny? If not any recomendations on a kit? Any suggestions on replacement motors(or possible upgrades to the current motor for extra horsepower) are much appreciated I'm pretty much clueless at this point. Thanks! -Andrew No. The later PL521 had an L16 motor and the same transmission but it has a bolt pattern for the L series motor and yours would not fit it. I believe there is a J15 motor used in the 620s in Central America. Lot of trouble for a small gain. The 1800 motor in an MG may fit... again way too much trouble. Also with any larger motor swap your 4.88 rear end would be a MPG liability and would need changing also. I would find a mid '70s to '80 L20B and 5 speed from a 620 and make it fit. I had a '71 521 and swapped an L20B in. The original motor was an L16 but this one pulled pretty good. Yes you would have to change the motor/trans mounts. Quote Link to comment
DJames68;520 Posted February 10, 2012 Author Report Share Posted February 10, 2012 No. The later PL521 had an L16 motor and the same transmission but it has a bolt pattern for the L series motor and yours would not fit it. I believe there is a J15 motor used in the 620s in Central America. Lot of trouble for a small gain. The 1800 motor in an MG may fit... again way too much trouble. Also with any larger motor swap your 4.88 rear end would be a MPG liability and would need changing also. I would find a mid '70s to '80 L20B and 5 speed from a 620 and make it fit. I had a '71 521 and swapped an L20B in. The original motor was an L16 but this one pulled pretty good. Yes you would have to change the motor/trans mounts. Thanks for all responses; datzenmike: Any suggestions on web sites or locations near LA where I can check out or buy a L20B and/or 5 speed from a 620? Quote Link to comment
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