New World Datsuns...

so i just got this 1973 620 pickup it had an l16 in it little 4 speed the motor was completely taken apart and im just gonna throw a l20b in it since it bolts right up as i have been told i just need some information on if the wiring harness mounts right up to the l20 and if i can use the 4 speed from the l16 i know you need a new flywheel and clutch kit but does anyone know what ones? i use to have a nissan 720 so im not really use to these 620's.

Hi Austin!
Give it a minute and everyone will be requesting pictures of the truck..
Someone help him out though, than me and him will post pictures of everything when we get it back to his house tonight.

I took a 78 620 L20 w/ 5 speed and installed into a 74 620 that had the L16 w/ 4speed and it fit perfect. ( swapped the EI dist and IR alternator since 74 didn't have them ) Both trannys were the same length.

The engine wiring was not a problem, seems like it all hooked up with no issues as long as the distributor and alternator are not EI and IR.

Welcome to the form Austin, looking forward to the pic's.

so i found out that the l16 in it is just fine it needs a head gasket repaired but i have the whole kit already gonna have pics of doing it this friday this should be really fun and thanks my friend justin said this is a great side and im looking forward to being here for a long time!

Good to have ya around. Can't Wait for the pictures!

Welcome

Put the L20b in it, you will be happier in the long run.

Repair L16.
Set it aside.
Install L20b.
Enjoy.

DRIVEN » Tue Nov 18, 2014 7:53 am wrote:Repair L16.
Set it aside.
Install L20b.
Enjoy.

That's exactly what im doing! Building nice L20 then setting 16 aside and build it nice as well and just hoard it.

Hmm. Thread is lacking pictures lol

izzo » Sat Nov 22, 2014 10:48 am wrote:Hmm. Thread is lacking pictures lol

And an update....

He ended up buying a different 620..
Strong l20 but carb issues, I think he ordered a weber but idk..