3584 ’73 620

Here is my 1973 Datsun truck. 20 years ago my deaceased father owned it. It was sold to a local that blew it up and parked it. I found the dude and he STILL had the truck parked for the last 12 years.

I now reown the truck thta was my dads....I have the original 1600...an import 1600 in the truck thats blown and the L20b thats going in it.....Dave

Here is the ratty interior!

How cool is it that you got your dads truck back after all that time! What are your plans for it?

Very cool to get your dad's truck back. Build something cool for him.

I wish that i had all the datsuns that my dad has owned over the years.

Jason

Yeah I am very happy with this. What are the odds that the owner would let it set for all that time?....slim to none?

First thing is the L20 in the photo...got a friend in Estacada that does upholstery. Hes gonna redo the bench seat. New front fenders from...i think it's "partstrain" both drop shipped for about 185.00.

Probably keep the wheels and put hub caps and PHAT-ASSED Hoosiers on them...how cool would they look?

Header from Bills Datsun Shoppe in Clackamas and a Carbs down the road........Dave

Dave, try this link for the header, i payed 153.00 incl. shipping. I have the l20 in my 73 and the header worked great............

http://www.racetep.com/

you you going to use the auto transmission?

There might be a flex plate issue since a L20 is a 6bolt crank and the L16/18 is a 5bolt crank

Datsunaholic would know more in this unless your going to add a manual trans to it.

also where the L20 come out of.
L20s from cars use a 200mm clutch set up
L20s from trucks use a 225mm(heavy flywheel) set up

Ooh, I didn't notice the A/T until Hainz mentioned it- yes, you're gonna need a 6-bolt flexplate if you intend to use the A/T with the L20B. Fortunately all Datsun L-series and Z-series from '75-on use the same flexplate with A/T (Trucks, cars, Z's). Lots of chances to find one.

Thanks Guys!...yEah I'm keeping the auto. I drive truck/trailer for a living and shifting a vehicle after work is the last thing I want to do.

How much can I expect to pay for the part?

The part will be cheap I bet
Its tearing a motor and trans apart in a junk yard thats going to be hard.

Maybe ezer to just find another L16/L18 which uses the 5 bolt pattern
Youll need the flex plate and theres a little metal adapter thing thats on the end of the cranks shaft to fit the flexplate.

also if using the L20 the pipe comong out of the L20 is not the same as the L16 so there will be issues there also. The L20 is taller

I dont know the year of the L20 you have but after a certain year they went to a round port exhaust and if you whant to you have the L16 one Im sure its a square port head. You have to take all thin into consideration.

This should be planed out before taking it on cause most people just say hell with it and dump the vehicle

swap the oil pan also from the L16

also if using the L20 the pipe comong out of the L20 is not the same as the L16 so there will be issues there also. The L20 is taller

Which pipe are you talking about?

L16s use a Y pipe type exhaustmanifold A 2 IN TO ONE.

The l20 you have its just a pipe that hooks up to its manifold.

But if you want to use the L16 manifold you have to find out if it s a round exaust port head. You can look by the Head casting on the other side. If its a U67 head then you can more or less your your L16 ex manifold.

There is a little more also on the way the head is heated . Some L20 heads have to be driled for the water passages if using the stock L16 intake (which i PREFER).

I have a complete L20b thats going in it. I'm going to put on a new header and pipe and muffler....

Heres one shot of the L20

I threw out a perfectly good flex plate/ring gear and the parts to bolt them on. It was from a turbo Z. I still have the torque converter if you ever need that. (free) about 100K miles, should be in good shape. Nobody ever wants auto tranny parts so they end up in the trash. Some people try to sell cheap or even give away an auto tranny with no takers...

Since you're in washington, I'll keep my eye out for an auto tranny setup that is not needed.

Yeah I'm stupid...but asking questions is the only way to learn,right? This distributor is electronic isn't it?

yes that is the matchbox electronic dizzy ...

had one on my 68... worked great...

That is cool it was your dad's, my dad had a 59 pickup when he was younger, I wish I had that. Good luck dude.

if the w53 head you have has closed combustion chamber and square ex. ports, use that. use the l16 intake manifold, and a header if you're going that route.

duggy, the w53 is a peanut head? I get confused.

Dave yeah, use that dist that's on there. ask all the q's you need, you've come to the right place.

Thw W53 is peanut/square port. The W58 is round exhaust, but can be open or closed (I have both. Closed were an add-on part, not used on standard stuff). W53s did not come on L20B's stock (L16 and L18 in Japan, late 70s only), but W58s did and you have to look REALLY close or you confuse the 2. W53 is essentially identical to a closed-chamber A87 with the larger (not largest) valves. A87s vary widely. W53s were pretty much a standard casting, but some were factory drilled for EFI.

Author	Message
phatdave Enthusiast Joined: 18 February 2006 Location: United States Posts: 327	Topic: ’73 620 Posted: 25 February 2006 at 8:00pm
	Here is my 1973 Datsun truck. 20 years ago my deaceased father owned it. It was sold to a local that blew it up and parked it. I found the dude and he STILL had the truck parked for the last 12 years. I now reown the truck thta was my dads....I have the original 1600...an import 1600 in the truck thats blown and the L20b thats going in it.....Dave
	IP Logged

phatdave Enthusiast Joined: 18 February 2006 Location: United States Posts: 327	Posted: 25 February 2006 at 8:02pm
	Here is the ratty interior!
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pac. coast 521 Expert Joined: 17 November 2003 Location: United States Posts: 1427	Posted: 25 February 2006 at 9:42pm
	How cool is it that you got your dads truck back after all that time! What are your plans for it?
	My 1965 L 320 {all original} 69 L 521 w/KA swap 94 Hardbody [custom] 74 620 project
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yello620 Enthusiast Joined: 22 July 2005 Location: United States Posts: 312	Posted: 25 February 2006 at 11:08pm
	Very cool to get your dad's truck back. Build something cool for him. I wish that i had all the datsuns that my dad has owned over the years. Jason
	1976 620 L20b 4spd 04 xterra wheels 2056015's lowered 3.5", Front disk brakes.
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phatdave Enthusiast Joined: 18 February 2006 Location: United States Posts: 327	Posted: 25 February 2006 at 11:25pm
	Yeah I am very happy with this. What are the odds that the owner would let it set for all that time?....slim to none? First thing is the L20 in the photo...got a friend in Estacada that does upholstery. Hes gonna redo the bench seat. New front fenders from...i think it's "partstrain" both drop shipped for about 185.00. Probably keep the wheels and put hub caps and PHAT-ASSED Hoosiers on them...how cool would they look? Header from Bills Datsun Shoppe in Clackamas and a Carbs down the road........Dave
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Ryan in Seattle Expert Joined: 08 December 2002 Location: United States Posts: 2701	Posted: 26 February 2006 at 10:23am
	Dave, try this link for the header, i payed 153.00 incl. shipping. I have the l20 in my 73 and the header worked great............ http://www.racetep.com/
	1973 620 "Prerunner" L20B,A87,5spd.Lynx,40dcoe, header,cammed & bored. zx oil pump,starter,headbolts & water pump/pulley.
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Hainz Guru Joined: 03 December 2002 Posts: 3122	Posted: 26 February 2006 at 8:37pm
	you you going to use the auto transmission? There might be a flex plate issue since a L20 is a 6bolt crank and the L16/18 is a 5bolt crank Datsunaholic would know more in this unless your going to add a manual trans to it. also where the L20 come out of. L20s from cars use a 200mm clutch set up L20s from trucks use a 225mm(heavy flywheel) set up
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datsunaholic Moderator Group Joined: 05 December 2002 Posts: 4079	Posted: 26 February 2006 at 8:48pm
	Ooh, I didn't notice the A/T until Hainz mentioned it- yes, you're gonna need a 6-bolt flexplate if you intend to use the A/T with the L20B. Fortunately all Datsun L-series and Z-series from '75-on use the same flexplate with A/T (Trucks, cars, Z's). Lots of chances to find one.
	'64 320 '68 520 '72 521 V6 '74,75,79 620s '76,78 4X4 '76 KC '72 510 Wgn '78 B210 '78,81 510 Wgn 2X '78 510 Coupes '83 720 KC
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phatdave Enthusiast Joined: 18 February 2006 Location: United States Posts: 327	Posted: 27 February 2006 at 8:40am
	Thanks Guys!...yEah I'm keeping the auto. I drive truck/trailer for a living and shifting a vehicle after work is the last thing I want to do. How much can I expect to pay for the part?
	IP Logged

Hainz Guru Joined: 03 December 2002 Posts: 3122	Posted: 27 February 2006 at 8:44am
	The part will be cheap I bet Its tearing a motor and trans apart in a junk yard thats going to be hard. Maybe ezer to just find another L16/L18 which uses the 5 bolt pattern Youll need the flex plate and theres a little metal adapter thing thats on the end of the cranks shaft to fit the flexplate. also if using the L20 the pipe comong out of the L20 is not the same as the L16 so there will be issues there also. The L20 is taller I dont know the year of the L20 you have but after a certain year they went to a round port exhaust and if you whant to you have the L16 one Im sure its a square port head. You have to take all thin into consideration. This should be planed out before taking it on cause most people just say hell with it and dump the vehicle swap the oil pan also from the L16
	IP Logged

phatdave Enthusiast Joined: 18 February 2006 Location: United States Posts: 327	Posted: 27 February 2006 at 8:59am
	also if using the L20 the pipe comong out of the L20 is not the same as the L16 so there will be issues there also. The L20 is taller Which pipe are you talking about?
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Hainz Guru Joined: 03 December 2002 Posts: 3122	Posted: 27 February 2006 at 9:23am
	L16s use a Y pipe type exhaustmanifold A 2 IN TO ONE. The l20 you have its just a pipe that hooks up to its manifold. But if you want to use the L16 manifold you have to find out if it s a round exaust port head. You can look by the Head casting on the other side. If its a U67 head then you can more or less your your L16 ex manifold. There is a little more also on the way the head is heated . Some L20 heads have to be driled for the water passages if using the stock L16 intake (which i PREFER).
	IP Logged

phatdave Enthusiast Joined: 18 February 2006 Location: United States Posts: 327	Posted: 27 February 2006 at 9:28am
	I have a complete L20b thats going in it. I'm going to put on a new header and pipe and muffler....
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phatdave Enthusiast Joined: 18 February 2006 Location: United States Posts: 327	Posted: 27 February 2006 at 9:32am
	Heres one shot of the L20
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Bleach Guru Joined: 04 December 2002 Location: United States Posts: 4806	Posted: 27 February 2006 at 9:56am
	I threw out a perfectly good flex plate/ring gear and the parts to bolt them on. It was from a turbo Z. I still have the torque converter if you ever need that. (free) about 100K miles, should be in good shape. Nobody ever wants auto tranny parts so they end up in the trash. Some people try to sell cheap or even give away an auto tranny with no takers... Since you're in washington, I'll keep my eye out for an auto tranny setup that is not needed.
	Ratsun.net
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phatdave Enthusiast Joined: 18 February 2006 Location: United States Posts: 327	Posted: 27 February 2006 at 10:13am
	Yeah I'm stupid...but asking questions is the only way to learn,right? This distributor is electronic isn't it?
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84TAVeRT Enthusiast Joined: 27 January 2004 Location: United States Posts: 165	Posted: 27 February 2006 at 10:31am
	yes that is the matchbox electronic dizzy ... had one on my 68... worked great...
	1973 620 - Needs carrier bearing, u-joints, clutch master cyl, and starter 1984 TransAm Convertible, needs ring job and top...
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icehouse Expert Joined: 05 April 2005 Location: United States Posts: 2115	Posted: 27 February 2006 at 10:52am
	That is cool it was your dad's, my dad had a 59 pickup when he was younger, I wish I had that. Good luck dude.
	check out http://forum.ratsun.net
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Ryan in Seattle Expert Joined: 08 December 2002 Location: United States Posts: 2701	Posted: 27 February 2006 at 6:57pm
	if the w53 head you have has closed combustion chamber and square ex. ports, use that. use the l16 intake manifold, and a header if you're going that route. duggy, the w53 is a peanut head? I get confused. Dave yeah, use that dist that's on there. ask all the q's you need, you've come to the right place.
	1973 620 "Prerunner" L20B,A87,5spd.Lynx,40dcoe, header,cammed & bored. zx oil pump,starter,headbolts & water pump/pulley.
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datsunaholic Moderator Group Joined: 05 December 2002 Posts: 4079	Posted: 27 February 2006 at 8:01pm
	Thw W53 is peanut/square port. The W58 is round exhaust, but can be open or closed (I have both. Closed were an add-on part, not used on standard stuff). W53s did not come on L20B's stock (L16 and L18 in Japan, late 70s only), but W58s did and you have to look REALLY close or you confuse the 2. W53 is essentially identical to a closed-chamber A87 with the larger (not largest) valves. A87s vary widely. W53s were pretty much a standard casting, but some were factory drilled for EFI.
	'64 320 '68 520 '72 521 V6 '74,75,79 620s '76,78 4X4 '76 KC '72 510 Wgn '78 B210 '78,81 510 Wgn 2X '78 510 Coupes '83 720 KC
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