hoopty Posted February 10, 2011 Report Share Posted February 10, 2011 Hey all, I've been following Ratsun for a while looking at all the various builds. I ended up finding a great price for a decent 72 620 and had to go for it. I bought it today and dragged it home. It has been sitting since 99 and has very little rust outside of the fenders and tailgate. Here are some pics! It has a fairly new rebuilt L series (from 99), 1600 i assume but i couldn't find a engine stamp at a quick glance to confirm it. Where is the stamp located on the block? Also there is no power to any electrical components, the wiring seems to be slightly tampered with, does anyone have a good reference for a wiring diagram? Quote Link to comment
datzenmike Posted February 10, 2011 Report Share Posted February 10, 2011 Engine ID is just behind the dip stick handle. Quote Link to comment
DanielC Posted February 10, 2011 Report Share Posted February 10, 2011 This will be your second favorite website: http://www.olddatsuns.com/ Ratsunm, of course will stay number one. Quote Link to comment
Zeusimo Posted February 10, 2011 Report Share Posted February 10, 2011 Left Side Of The Motor (Where The Spark Plugs Are) There Is L20b Stamped Into The Block Just Under The Head :lol: BTW Nice Truck And Welcome To Ratsun :lol: Quote Link to comment
flatcat19 Posted February 10, 2011 Report Share Posted February 10, 2011 Welcome. Very clean. Good score. I love that color. Not original? What are your plans with the truck? 72? Wasn't 72 the last year for the 521? Regardless, welcome to the madness. Enjoi your new addiction. Quote Link to comment
hoopty Posted February 10, 2011 Author Report Share Posted February 10, 2011 thanks guys, turns out its the original block, head was definitely replaced. and it is a 72. 72 was the first year for the 620 i believe. anyway i have a few questions about doing a 5 speed swap, i've done a little research in the past and found bits of information. Z trannys are incompatible correct? theres always the possibility of a housing swaps ive seem to hear, i assume that means to swap the internals from a Z tranny to my housing? then theres the drive shaft and shifter issues ive heard. What is the most suitable tranny fitment wise for my truck? Quote Link to comment
justin 620 Posted February 10, 2011 Report Share Posted February 10, 2011 L20b 5 speeds will swap over, but a few thing will need to be modified. Quote Link to comment
Pacific coast Datsun Posted February 10, 2011 Report Share Posted February 10, 2011 The 1st year for the 620 was 72 1/2. A few ways to tell is look under the front part of the frame & see if theres just 1 tow hook. If so..72 1/2. Another thing to look for is if the doors are original there will be a door pull on the top of the door & no arm rests. I saw this 620 on CL for a few weeks//good score. Does it currently run ? I would 1st get it running good & drive it for awhile & work out any bugs & or issues. You can use a 5 speed out of a 280 ZX 81-83 & it will bolt to your motor. You will have to shorten the front driveshaft, use the truck clutch slave & throw out bearing & trim the floor back a bit for the shifter [ZX trans is longer]. Go here for TONS of info including wiring diagrams........http://www.olddatsuns.com/ Also if you want to sell the outside door mirror ill take it :D Im in San diego too :cool: welcome to Ratsun. Quote Link to comment
BRE510 Posted February 10, 2011 Report Share Posted February 10, 2011 Hoopty - I have a dogleg 200SX 5 speed I just pulled from my 72 620 (pictured in my avatar). It shift perfect and no issues with it. It is a direct bolt in requiring no modifications. If interested , you can have it for $250. PM me if interetsed. Quote Link to comment
]2eDeYe Posted February 10, 2011 Report Share Posted February 10, 2011 Nice truck, welcome aboard :D Quote Link to comment
topless620 Posted February 10, 2011 Report Share Posted February 10, 2011 Sweet. Another purple truck like mine Quote Link to comment
hoopty Posted February 10, 2011 Author Report Share Posted February 10, 2011 More burgundy than purple, i haven't started it yet but I replaced the fuse link last night, it was blown. I just need a battery and gas tank renovation and it should crank and fire. Keeping all parts for now sorry. Quote Link to comment
banzai510(hainz) Posted February 10, 2011 Report Share Posted February 10, 2011 get it running, buff it out lower it and just drive it. good daily driver truck to learn on You might find a better 620 later like a 78/79kingcab ealry trucks have Kingpins http://olddatsuns.com/ Quote Link to comment
datzenmike Posted February 10, 2011 Report Share Posted February 10, 2011 The 1st year for the 620 was 72 1/2. A few ways to tell is look under the front part of the frame & see if theres just 1 tow hook. If so..72 1/2. Another thing to look for is if the doors are original there will be a door pull on the top of the door & no arm rests. My understanding were that the door pull handles were available through '78 with the arm rests as an option till then and standard equipment on the '79s. Quote Link to comment
jesus620 Posted February 11, 2011 Report Share Posted February 11, 2011 Hey Hoopty, Nice truck...if you don't mind me asking, how much did you pay for it? I'm in SD too and have been keeping an eye out for a 620. Quote Link to comment
bbqbill Posted February 11, 2011 Report Share Posted February 11, 2011 welcome!!! this is a great place to get help with any problems you may run into,by the way ,nice truck! Quote Link to comment
Wide14u Posted February 11, 2011 Report Share Posted February 11, 2011 i think your off to a good start your and we welcome you Quote Link to comment
Pacific coast Datsun Posted February 11, 2011 Report Share Posted February 11, 2011 My understanding were that the door pull handles were available through '78 with the arm rests as an option till then and standard equipment on the '79s. I stand corrected... Quote Link to comment
hoopty Posted February 11, 2011 Author Report Share Posted February 11, 2011 I ended up getting it for 800, the guy originally wanted twelve. Ive been looking in San Diego for a while and havent seen much for the price range I was working with. I just hope she runs as good as she looks, you just never no. It sucks that I'm so busy the next few weeks, I just want to get it started... Quote Link to comment
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