me and my friend have sj's I have the samurai he has a 410
when i went looking for an sj I went looking to get the best condition one I could get, with the least amount of rust, I settled for a samurai, the samurai has the 1.3 engine and the 5 speed gear box, my
friendss 410 is the 1litre engine with the 4 speed gear box, top speed wise, my samurai was slightly quicker, I then put mud tyres on and found it was slightly slower!
Personally if i was looking to buy another SJ I would pick a 410, I find the engine so much revier and 'free-er' wheras the 1.3 engine is a bit of a plodder, it doesn't rev as high and its power isn't as high up in the rev range, I find the 410 nicer to drive generally and off road the main advantage of the sj is its light weight and how it bounces up obsticles with a run up! with larger 4x4's they just plod along, and i think the 410 engine is better suited, neither 410 nor 413 will win any races, the fuel consumption is about the same and one important thing to consider is some 410's have only drum brakes and most 410's don't have servo assisted braking,
Final thing to consider, I wanted a soft top for novelty factor, but truth be know i take the soft top off half a dozen times a year at most, The soft top makes it a target for light fingered youths and when you travel on the motorway its extremly noisy, I would rather have had a hardtop although they are harder to find now,
so to summerise, If i was buying an SJ again I'd buy a 410 van, and i would probably go for the 4 speed gear box for novelty, the 5 speed box doesn't make much difference to the top speed
Luke