mrgoochio

Hey all, since I'm new to modifying motors, I have a question for you all. I don't know if I have enough information to identify whats been done, but this is what the seller told me. He stated his '73 240z had

So what kind of motor is this technically? I don't quite understand which parts specifically would be from the 240z and what is part of the 280 block. I'm a novice and I'm trying to understand what has been done. Is this considered an L28 swap from a 280z? I assume its a 280z and not a 280zx L28e.

By the way, what differences are there between the 280Z L28 and the 280ZX L28e?

Daniel

skittle

As Far As I Can Think Maybe Just The Heads And Intakes.

mrgoochio

Those the differences between the L28 and L28e?

What about the motor I was talking about from the seller? I'm pretty interested, the car is in good condition but I'm just curious about the swap he did.

By the way, is it typical for the A/C unit to be removed when doing that kind of engine work? Trying to figure out why someone would remove an original A/C unit that Nissan installed.

Daniel

skittle

The L28 Is An L28e, There Is A L28et (turbo)

mrgoochio

Right. So are you saying a 240z head and intake with a L28 block?

Hm does that make the 280z L28 and the N/A 280zx L28 motor the same for the most part?

Daniel

skittle

Yeah Its The Same Block. Whats The Head You Have? An E88? If Its An N47 Thats A 280zx Head Or Even A P-90/p90a

skittle

A Better Question Is, Is It Fuel Injected Or Carbed?

NismoPick

Basic Nissan engine lesson...

L = L series Datsun Engine (L stands for Long... aka inline 6)
24 / 26 / 28 = engine liter (displacement)
E = Electronic fuel injection
T = Turbo
VG = V6
D = Dual overhead cam
TT = Twin Turbo


example...

L28ET = Inline 6 2.8 liter fuel injected Turbo

L24 = Inline 6 2.4 liter Carb

VG30DETT - V6 3.0 liter Dual overhead cam Electronic fuel injection Twin Turbo.

I don't believe there were any 280z's that were carb'd from the factory. When people say "L28" they are just leaving out the "E" unless they are talking about a carb'd setup like yours.

If you have an L28 block w/ 240z parts... then you have one of two possible L28 blocks & the 240z head, manifolds, etc.

skittle

Ahhh Ha So I Was Right.... Mwaaa Hahahhaha

mrgoochio

Ah I didn't know the e stood for EFI. That makes much more sense. I am under the assumption the car has an L28 N42 block with the original 240z head/manifolds and whatever else that I'm unaware of. The car hasn't been converted to EFI, it's still carbed. Thanks for the help guys.

I'm still curious about the lack of A/C in the car though. He said he has the A/C installed by Nissan but its not in the car right now. Why would the A/C have been removed? Is it possible the A/C was removed in the block swap and never put back in? Or is that a total stretch..?

Daniel

Edit: Heres a picture of the car I'm looking at picking up. I'm curious about the bumper though, I've seen it on 1974.5 260z's. Do both the '73 240z and '74 260z share the same features? The rear bumpers seem to be the same as well.



Edit2: Looks like the top chrome bar detaches from the main bumper, but that leaves some screw-holes I guess. The rear has a similar chrome bar that looks detachable as well. Where do the thin chrome bumpers come from without the two pegs on them like this one has? '70-'72?

skittle

don't worry about the bumper just get the car. and is there a compressor under the intake mainfold witha pully on it?? that is the A/C compressor.

Or you can take a pic of the engine bay and then we could tell ya.

mrgoochio

Haha wish I could tell you, I'm still in Shanghai on business and won't be back until early next month. Unfortunately the seller will probibly get rid of it before I can take a look in person. He said he's going to list it on ebay soon Anyhow, he sent me these pictures and also told me the A/C has been removed. I'll upload more shots of the car in a sec, internet is pretty bad here.

Daniel

mrgoochio

Promised pictures, take a look please skittle





Daniel

linluv84

Notice the CHT sensor on the head? It looks like an L28e. That would be an F54 block, flat top pistons, and a p79 head. FWIW, I believe the L is the motor series, mainly a reference to the L block design. Keep in mind there are several L series motors that are 4 bangers...

mrgoochio

He said the car still has the original dual carbs plus the block came from a 280Z, which from what I understand doesn't come with an F54 block. Aside from the 280Z block, he said he kept the original '73 240Z parts. Still waiting for the A/C inspection from skittle I'm quite the novice under the hood, hehe

Daniel

NismoPick

You know you can just look at the engine casting code & see what block you have... right?

Check out this thread about identifying your engine:

https://www.zdriver.com/forums/showt...highlight=code

mrgoochio

If they cant be seen from those engine bay shots, I can't take a look for myself. Perhaps you missed it when I mentioned I'm working out of Shanghai as we speak I won't be back in the States for a visit until early next month and will hopefully be able to take a closer look then. For now, the pics and what he told me is all I have going. Just trying to get a grip on what I can find out as far as the motor and A/C

Daniel

skittle

It Does Not Look Like It Has The Compressor For The A/c So My Guess Its Gone. Question Is Do You Want A/c Or Do You Wnat Ot Keep It As Light As Possible??

mrgoochio

I definitely want A/C. He says he has all the components still in the box. From the last e-mail I received a few hours ago, he said it was removed because it tends to get in the way when you want to do any work under the hood (or to the motor perhaps?) Does that statement have any truth to it? He seems like a pretty honest seller and that was his explaination. If I do get the car, how difficult is it to re-install the A/C? I guess its all relative to how handy I am, but I'm confident I can install certain things given patience and some instruction. For reference, I've installed plug-n-play HID kits, OEM fog kits, short shifter assemblies, etc. Although these were installed on a modern 2005 model car..

Daniel

mrgoochio

Hey all, the car in question has recently been posted on ebay, went to about $3950 and didn't meet the reserve. I'm still in Shanghai and will be visiting the states (yay a break at home finally ) in about a weeks time. Anyhow, after reviewing the pictures more, its starting to bother me that the hood, trunk, and front bumper don't line up. I may take a look at the car, but I'm not as 'into' the car as I was when I first spotted it. Anyhow, I'm still on the lookout for a 'great' conditioned Z. Just wanted to post an update and let ya'll know I'm not done with my search.. and that I'm bored..

Daniel