ka62078 Posted September 7, 2010 Report Share Posted September 7, 2010 Hey just bought this 521 and I wanted to throw in a L16 but im having questions like the L16 mount arent matching with the chassis they are the L16 mounts that came off a 521 but I guess my truck had a J13 em I going to have to weld these mounts? Quote Link to comment
datzenmike Posted September 8, 2010 Report Share Posted September 8, 2010 J13 and L16 are not compatible. You will have to make/mod them. Quote Link to comment
ka62078 Posted September 8, 2010 Author Report Share Posted September 8, 2010 Do you know what's the best way if you do that would really help or do you think I'm better off gettin j series Quote Link to comment
Guest DatsuNoob Posted September 11, 2010 Report Share Posted September 11, 2010 I did this for Zuum510 back when he had a 521. we had the lower mounting sections that were welded to the 620 frame. Just snubbed off the J13 ones and welded the Lseries ones in. I measured from the center of the mount to the firewall and found a point of reference on the motor so it would not hit the firewall. Set up the Lseries frame mounts, cross-measured for square and welded them shitz in. It went pretty quick. Quote Link to comment
ggzilla Posted September 12, 2010 Report Share Posted September 12, 2010 521 with J13 and 521 with L16 have very different frame and mounts. It's not as simple as just swapping the mounts. Quote Link to comment
hessianben Posted September 12, 2010 Report Share Posted September 12, 2010 521 with J13 and 521 with L16 have very different frame and mounts. It's not as simple as just swapping the mounts. man i had no idea these were so different! Ignacio- hopefully we can either figure out a way to get that motor in, OR you could probably sell that L16 for more that you bought it for, and get a J motor again....? maybe someone wants to trade...? Quote Link to comment
Guest DatsuNoob Posted September 12, 2010 Report Share Posted September 12, 2010 I've DONE it though Zilla. It was pretty damn easy too. We had the front end of a 620 to scavenge so it was no big deal. I wish Zuum510 still came around here, it was his old red 521 we did it to. Quote Link to comment
sick620 Posted January 19, 2011 Report Share Posted January 19, 2011 ok bumping this back up because I have a ? If you have a early 521 that came with a J series.... And you relocate motor mounts, tranny mounts, and get a custom driveline... will the L series even fit? Or will it be hitting brake cylinder and other stuff? Quote Link to comment
datsunaholic Posted January 19, 2011 Report Share Posted January 19, 2011 ok bumping this back up because I have a ? If you have a early 521 that came with a J series.... And you relocate motor mounts, tranny mounts, and get a custom driveline... will the L series even fit? Or will it be hitting brake cylinder and other stuff? IF you use a PL521 or PL510 transmission you won't need a custom driveline or tranny mounts. If you use any 5-speed or a longtail 4-speed then you'll need a custom mount, and a custom driveline is only needed for a longtail trans. The original, 1-piece driveshaft works fine with short-tail transmissions as the original one on the J13 is the same length (it is in fact the same trans as the PL521 except for the front case and lacks the rear flange). The brake master is in the same place on a L521 as a PL521. No worries. It's the use of SUs that cause issues clearing the steering tube. What does need to be changed is the core support- the J engine is shorter, so the L521 core support has the radiator further into the bay. Quote Link to comment
sick620 Posted January 19, 2011 Report Share Posted January 19, 2011 so just motor mounts need changed? Quote Link to comment
datsunaholic Posted January 19, 2011 Report Share Posted January 19, 2011 so just motor mounts need changed? Depends on the transmission, as said. Can't use the J-trans on the L-engine. Plus rerouting fuel lines, unless you use an electric pump. The amount of mods depends entirely on the entire drivetrain being installed, not just the engine. Quote Link to comment
Guest DatsuNoob Posted January 28, 2011 Report Share Posted January 28, 2011 It's really really not that hard with some basic measuring/welding skills, I got Zuum510's within an 1/8". Quote Link to comment
hastifc Posted January 28, 2011 Report Share Posted January 28, 2011 hopefully ill have mine swapped by the time you come by, and i can show you exactly what was done, but its just like datsunoob said. i was lucky and found a scavenged 521/L16 truck at a yard, and cut out the factory hard mounts. they will locate at the same point in my truck snugged right up against the engine crossmember. Quote Link to comment
wayno Posted January 28, 2011 Report Share Posted January 28, 2011 If you can find a 521 L16 frame to scavange the engine mounts off of it should be fairly strait forward, take detailed photos :lol: :lol: of where they are on that frame and put them exactly in the same spot on your frame. The core support for the radiator is easy, if you look behind the existing J13 radiator sheetmetal mounts you will see the future L16 radiator mounting holes, so all you do is cut the J13 sheet metal off the core support and the L block radiator will mount, you will have to use a bolt and nut, as the nut for the L rad. was not put in yet. wayno Quote Link to comment
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