View Full Version : 240z engine swap choices

05-23-2005, 12:40 AM
My friend just got a 240z, and he was planning on doing a engine swap. Either a vg30dett or a RB series engine. I was wondering if you guys knew where we could get info on these swaps, Who makes mount kits?
for a vg30dett, is a custom oil pan needed? Any help is appreciated

05-23-2005, 02:18 AM
Personally I'd go with a S20 motor...are there even any of these in a S30 in the States?

If not, for the money spent swapping a RB or VG you could have an absolutely insane L-series.

05-23-2005, 08:11 AM
RB25DET is the only ticket for that baby.

05-23-2005, 11:59 AM
nice. More opinions? Someone here talking from experieince? I heard something about the rb25det oil pan mods.
I do not have any info, or access to a s20 engine. BTW shouldn't the rarety and history of those engines brought the price up? The L series is a good engine, but we just have this itch to have a more modern design engine, even though we are going to waste a good amount just to get this engine in the freakin car.

We were hoping to be able to throw a vg30dett in the 240z sitha nice single turbo setup on a stock engine for now. The vg30dett's are cheaper than sr20's over here, and have more displacement than a rb26dett at half the cost

Anyone like Datsport that makes engine swaps for the Z cars?

05-23-2005, 02:21 PM
copied from my other post to this one
also FA is great for the 240sx thing and newer nissans but for z stuff i would recommend other fourms like
you will find alot more info at those two sites for z cars than FA. at least from my opinion.

05-23-2005, 06:14 PM
Thanks, very true. There are a lot of knowledgable people here, but this classic section is pretty dead. It has been better lately , though.

05-23-2005, 07:51 PM
an S20 would cost somewhere in the tens of thousands at least, very impossible to get.

the only ready made swap kits are for V8's. JTR and MSA are the only two places I know that sell them.

VH45DE is my favorite choice, if you buy a Q45 you can use the diff and brakes and stuff as a bonus too. It's also possible to adapt a Z32 5spd.

Did you see the 450Z TT? there's a thread around here somewhere.

There's a mailing list at zhome.com that's really helpful.

05-24-2005, 11:29 AM
I have seen the q45 engine with a 300zx tranny, but it looks like they want an arm and a leg for the adapter plate and the adapter for the throw out bearing. The plan is switching toa possible Toyota engine. 2jz gte or a 1jzgte. If that does not come through, rb series

05-24-2005, 07:54 PM
small block chevy. you can't beat the bang for the buck. I believe there are "off the shelf" install kits available for the 240.


GM Goodwrench has this RamJet 350 engine. It's advertised as, kind of, plug-n-play. The ad states "just add 12v power and fuel". 350 fuel injected h.p. out of the crate.


I'm trying to decide what car to put one of these into for my next project.

05-25-2005, 12:20 AM
yeah, a small block would be one of the cheapest powerplants with a good amount of parts availability. I just like DOHC 4 valve engines. Turbo's are cool too. Hee hee. There are plenty 2 vavle cam in block pushrods out there that are awesome, but it just does not tickle my pickle as much. http://forums.freshalloy.com/images/graemlins/cool.gif

05-26-2005, 12:13 AM
that's kind of the dilemma I am running into. I want to do a turbo S30-chassis old Zcar... and I'm a tech nerd that likes 4-valve stuff. But the cost of putting an RB into an S30 is just too much, especially when I get thinking of using a 6-speed, which would nearly double the cost, haha. Then I started looking at friggin' L28s, and found out how cheap it would be to do a ridiculous L28, but then I'd have a 2-valve head (not really that bad to me since the camshaft is in the right place, haha. I like 944 turbos and Volvo rwd turbos too and they're all SOHC), but the thing that really irks me is the stinking head. Intake and exhaust ports on the same side of the head http://forums.freshalloy.com/images/graemlins/mad.gif Heat soak like a mofo without going with a tubular exhaust manifold and sheetmetal intake manifold (move them farther apart) or ceramic coating everything and making a heat shield. Grrr... I need a better-paying job so I can make a nerdy insane Z instead of a budget insane Z http://forums.freshalloy.com/images/graemlins/grin.gif

05-26-2005, 12:47 AM
There are crossflow heads for the L-series...good luck finding one that the owner will be willing to part with though.

05-26-2005, 06:55 PM
I had a volvo before. A 89 740gle. Everything was origional volvo for around 150K miles. Just engine oil change. The tranny didn't need a change because of the amount of new fluid I had to keep refilling. Haha. It was a really strong chasis and drove like a tank. I would bump shopping carts in the way of my parking spot. People feard my car and the aggresive exhaust note coming form my corroded muffler. Oh yeah!

05-27-2005, 11:07 AM
I say go with the small block chevy. My buddy built one, and it's INSANE. He's got a roller-cammed 355 with Trick Flow aluminum heads and a world-class T5 5-speed behind it. ~450 hp and just as much torque. 4th gear burnouts at 80 mph are no problem at all. From a standing start, the engine will rev quicker than he can shift! I'm trying to get him to destroke it to a 302, so it'll rev even higher, but he likes the torque of the 355.

IIRC, his username on HybridZ.org is NWA240Z, or something very much like that.

05-28-2005, 03:08 AM
VQpower baby!! Look at the rediculous weight distribution with a 96 maxima vq bolted to a z33 6 speed tranny.


a vq30 weighs less than a ka24!! and the vq sits further back in the bay.

super smooth engine...
http://forums.freshalloy.com/ubbthreads/showflat.php?Cat=&Board=UBB9&Number=67952681&page= 0&view=collapsed&sb=5&o=&fpart=1

05-28-2005, 01:53 PM
There are crossflow heads for the L-series...good luck finding one that the owner will be willing to part with though.

really? I haven't seen anything about this except for that US engineering student that was trying to make one with KA24DE stuff...

05-28-2005, 11:58 PM
The crossflow heads available for the L series engine is really nice, but do not expect to get your hands on it. Maybe you would with a rediculous amounts of money. There is some good info found on this site http://www.datrats.com.au/OS%20GIKEN%20ENGINES.htm

A small block is definately the best bang for the buck. I will let you know what engine is going to be put in. He is trying to get a deal on 2jz-gte

08-17-2005, 11:33 PM
Has anyone tried putting a VQ into an old school Z?!?! From that S14's progress it looks very tempting!

08-18-2005, 12:50 AM
a lot of poeple do stuff on the z, but as far as selling the conversion, i have only seen small block v8's and rb series mount kits. Some things u gotta do yourself, and pray u did a good job. hahaaha jk

08-18-2005, 10:04 PM
Has anyone tried putting a VQ into an old school Z?!?! From that S14's progress it looks very tempting!

there was a guy in california who did a vq35de into an old school z, even swapped in the electronic braking system and dash as well, only downside i think was that it was automatic and the engine sat wayyyyyyy too far forward

08-19-2005, 12:57 AM
there was a guy in california who did a vq35de into an old school z

can I find any info of that car on the net?

08-19-2005, 11:03 AM
yea let me try and dig up the pictures of it and ill post them on here

08-29-2005, 02:32 PM
I have not seen too many kits available for sale, but a good fabricator can make the stuff for you, but it can get pricey. I was looking more into kits that have been done, tested , and proven. I talked to Mario Lozano over the phone, and it seems he had a couple sr20 510 kits b 4 he perfected his.

Ali 556
10-13-2006, 11:37 PM
get a v12 from a mercedes-benz S600L and turbo that peast..............lol:26: