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Old 05-05-2012, 02:08 PM   #1 (permalink)
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Default best and cheapest engine swap 84 sammi

What are the best performers and cheapest engine swaps for a 84 samurai? I like simplicity, but this is going to be my baby this Oregon Summer. So I would like to hear them all. ty and cherios
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Old 05-05-2012, 03:06 PM   #2 (permalink)
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The least expensive will be the 1300 carbed.
The best is what ever can be afforded.
I like Datsun conversions, others like Suzuki, Chevy, Yota, ETC.
There is no "best conversion engine swap"
Success is dependent on who's doing the conversion......
And how far you want to go....Boxcar...
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Old 05-05-2012, 03:08 PM   #3 (permalink)
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Easiest maybe 1.6L 8 valve
Best w/o going nuts 1.6L 16 valve (what I have)

What are you doing with it?
How much performance do you need?

There are plenty of nastier options to but added weight is a factor. The Suzuki 8v and 16v engines are VERY light like the 1.3.
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Old 05-05-2012, 03:22 PM   #4 (permalink)
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I hate to disagree .
I get more power, better economy, way better longevity, and a much wider power band from the Datsun L-20B than you will ever get from any Zuke transplant....
All this from a carbed mill that needs no computer conversions.
I am not and would never say it's the best conversion. ( That would be arrogant)
But from an engineering and experience point of view. It's a far better swap than the Zukes.
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Old 05-05-2012, 04:55 PM   #5 (permalink)
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I have read about Toyota swaps but seems like the added wt vs. added power made it to much hassle. I have not heard of the L20 swap. I know the Zuk engines are very light and very durable, the EFI is a big plus for me but I would LOVE a broader torque curve.

I looked it up to see what I could learn, looks like the L20-b has about a 15hp and 10ft.lb advantage over the zuk 16v and has an iron block but could not find any weight spec. I saw one with the 2.3L turbo Ford but the owner was cursing the added bulk in off road situations.

Do you run an L20-B? is the added wt noticeable, how is it on fuel? Did you use the Zuk or Datsun trans and how much work was mounting it?

Never hate to disagree with me, I invite it. If Im wrong I take on offense in being corrected. But would love more info in the Datsun swap, a search didn't get me anywhere on it.
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Old 05-05-2012, 05:33 PM   #6 (permalink)
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The L 20 B is about 50 lbs heavier over all.
I run them in everything from Datsun's to MGBs.
Have run them in 3 past Zukes that we have owned with amazing results.
I ran the Datsun Dog leg 5 speed in 2 of them and the drop pan 4 speed in the other.
Upgrades for the "L" motors are prevalent and cheap. Tones of info out there in cyber land.
The first we built was a stock engine running a Yota 3TC carb. It averaged 28 -30 mpg over a 3 year period.
The next two were built for pure HP and still managed about 20-25mpg.
The conversions are pretty straight forward. Similar motor mounts. The L-20 isn't a cross flow head so it is a bit tight on the drivers side but not bad. We run electric fans rather than off the motor to compensate for the added length of the engine (3.50").
Stock Zuke radiator. Wiring is a no brainier.
Exhaust dump is similar as far as location. ETC. ETC. ETC.
The thing about the L motor is that HP and torque gains are very easy to accomplish.
And it will spool all day long......
Here is a picture of a SSS L 18 we just installed in a 1966 MGB.
The duel SU's don't work well off road.....

I just started the new engine for my Zuke. It is an Asian market L20 with an A87 head , cam , Bob Sharp 4 bbl intake , and a few other secrets I won't get into here. 200hp is the target..... economy be damed....Boxcar...
PS: Datsun has a great 3 spd automatic that fits well in the Sammy........

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Old 05-05-2012, 06:03 PM   #7 (permalink)
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Sorry for the answer to my own post, But I got tired of editing the last one.
As to how the Zuke handles the added weight. It wasn't really noticeable except for the reduced push effect caused by a locked rear end in such a short wheelbase rig.
So in short it actually helped the handling of the three rigs we have converted...Boxcar...
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Old 05-05-2012, 06:27 PM   #8 (permalink)
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I love sidedrafts, multi SU setups are close to automotive porn.

50lbs isn't bad and not having to cut the tunnel is a plus. The rational poeple use for love of the 16v seems very sound but mine has low compression in a couple pots, thought about swapping for something with more torque but then decided to do a backyard re-ring. I may reconsider, I have to admit I am intrigued by this Datsun mill.

With the Zuk 16v its not that it can rev, but it has to rev. This 2.0 seems very worth consideration.

Tony
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Old 05-05-2012, 09:33 PM   #9 (permalink)
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Holy crap! Many thanks guys. I'm looking to go hunting and fishing on the east side of oregon this year with it. Which is a little drive from me, but not too far.I'm not a big off roader, but I love to hit the back roads, and make it to the high elevation lakes with ease. I want to keep the good gas mileage,and light weight,but still have a little fun on light trails, and maybe play a little in the high desert.I want to keep it 4cyl 5spd and just have a little more hp.I love simplicity and would like to find parts at any small mountain town parts dealership.I originally wanted to keep it carb, but the E.F.I has crossed my mind quite a bit. U guys Rock!
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Old 05-05-2012, 10:58 PM   #10 (permalink)
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I was raised with carbs and had a tough time learning to love EFI and elec ign but pragmatic experience has convinced me it is the way to go. Now that they have become so reliable I view it as a huge perk.

Im not sure how the Zuks behave at altitude with carbs but most vehicles I have done this with take a noticeable hit in performance and drivability with altitude and extreme temps. I tend to be pretty picky about how stuff runs and I live where temps get fairly cold so for me its well worth it. I would say its worth consideration.

Tony
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