VG30DE from Infinity to 300ZX swap?

Post by **steevano** » Mon May 16, 2016 9:20 pm

Just curious if a VG30DE from a 1995 Infinity J30 will swap into a 1990-93 ZX?

Post by **nissanfreak12** » Tue May 17, 2016 6:16 am

It will, you will have to change oil pan, motor mounts, mount brackets, move oil dipstick to other side(it still may work on the side its on), and a few connectors(injectors come to mind because it will be the new style) If you are going to put it in a manual car, you need to take out the auto spacer and install a pilot bushing for the manual transmission.

There might be a few things I am missing, but it will fit with slight mods like what I listed. I just got a new Z and it has a J30 engine in it.

Post by **budget300zx** » Thu May 19, 2016 11:41 pm

nissanfreak12 wrote:It will, you will have to change oil pan, <a class="vglnk" title="Link added by VigLink" target="_blank" href="http://www.autopartswarehouse.com/searc ... tor+mounts" rel="nofollow"><span>motor </span><span>mounts</span></a>, mount brackets, move oil dipstick to other side(it still may work on the side its on), and a few connectors(injectors come to mind because it will be the new style) If you are going to put it in a manual car, you need to take out the auto spacer and install a pilot bushing for the manual transmission.

There might be a few things I am missing, but it will fit with slight mods like what I listed. I just got a new Z and it has a J30 engine in it.

^Dipstick must be changed to other side, ^

also
metal lines to the heater core on the engine must be changed
oil pressure switch must be changed or plugged if using 300zx oil tree.
j30 oil filter mount may be used if desired, but is not the same.

Post by **steevano** » Sat May 28, 2016 6:25 am

cool, thanx

Post by **KeedyT** » Tue May 31, 2016 7:30 am

pardon my ignorance but what is the motivation to swap in this engine?

Post by **steevano** » Tue May 31, 2016 10:40 am

I broke the timing belt on my 93 vert and ran into someone else looking for vg for their 300 also. They purchased a VG30 that was supposed to have come out of a zx but appearantly not, so I'm inquiring for them

Post by **nissanfreak12** » Tue May 31, 2016 7:37 pm

KeedyT wrote:pardon my ignorance but what is the motivation to swap in this engine?

Its actually a cheaper solution or if you cant find a 300 engine, a J30 engine is identical internally, same comp ratio, cams pistons, etc. The heads have different casting, but same dimensions with valves and so on.

They are also less beaten on, probably better taken care of, could be more abundant dependent on the area. They are rated at less hp, but that is due to the intake plumbing, more restrictive exhaust and more efficient tuning vs the Z for better fuel mileage.

Post by **MarkerZ32** » Wed Jun 15, 2016 9:30 am

How does one go about relocating the oil dipstick? I swapped a J30 VG into my Z about a year ago and never really revisited that issue.

Post by **nissanfreak12** » Thu Jun 16, 2016 8:21 pm

There is a blocked section on the drivers side, just drill it out and fit a 300zx dipstick and tube there. Seal the j30"s hole after you pull the tube out. You need the pan off to get the shavings though.

I didn't do it on my new Z which has a J30 engine, I was hoping I could still measure the oil, boy was I wrong. I also bent the tube probably more than I should have.

Post by **MarkerZ32** » Sat Jun 18, 2016 11:15 am

Thanks for the info. I just ran a drift event and the rear main isn't getting any better so its time to swap the salvage J30 block I got. I pulled the EGR off it and found warranty tags on the back of the heads. Turns out to be a low mileage reman longblock

:

Still wanna give it a full reseal before I swap it.. and use my damn dipstick!

garyfabian · Post by **garyfabian** » Thu Aug 16, 2018 6:35 pm

what kind of drill bit do you use & what size? Also what do you use to fill the old hole with?

Post by **Ace2cool** » Fri Aug 17, 2018 6:13 am

A drill bit the same diameter as the dipstick. I don't have the exact spec off hand, but it's not hard to figure out. Start smaller and move up until you get a really tight press fit.

And for the hole, JB steel weld could work. There won't be any pressure on that. Just needs something that won't pop off. Or you could tap it and thread a bolt with some thread tape on it.

garyfabian · Post by **garyfabian** » Mon Aug 20, 2018 10:59 pm

Thanks! And for the type of bit to use will a carbon bit work or what kind of drill bit do you use?

Post by **DCaff300ZX** » Tue Aug 21, 2018 6:08 am

garyfabian wrote: ↑
Mon Aug 20, 2018 10:59 pm
Thanks! And for the type of bit to use will a carbon bit work or what kind of drill bit do you use?

Carbide or High Speed Steel should work fine, the block isn't hardened.

Post by **Ace2cool** » Wed Aug 22, 2018 12:29 pm

Far from it, lol. Cast iron.

garyfabian · Post by **garyfabian** » Fri Aug 24, 2018 3:13 pm

I went to Menards shopping for drill bits I saw this set with high speed steel & carbon steel brad point drill bits but the biggest size only went up to 1/4 for high speed steel & carbon steel biggest was 5/16

so I bought the this titatanium set instead with the biggest size going up to 3/8... should this work?

Post by **DCaff300ZX** » Sun Aug 26, 2018 10:20 am

garyfabian wrote: ↑
Fri Aug 24, 2018 3:13 pm
I went to Menards shopping for drill bits I saw this set with high speed steel & carbon steel brad point drill bits but the biggest size only went up to 1/4 for high speed steel & carbon steel biggest was 5/16
so I bought the this titatanium set instead with the biggest size going up to 3/8... should this work?

Yes, those will work fine.
Be sure when you do the work to do whatever is necessary to NOT get the chips/etc. from the drilling into your engine, or you'll have a whole new, worse problem. May take some disassembly and creative efforts, you DO NOT want metal shavings in your engine block!

garyfabian · Post by **garyfabian** » Fri Oct 19, 2018 6:04 pm

I brought a friend to drill the hole but we ran into some compiications that prevented us from trying. He did come up with a suggestion that I wanted to find out if that would work. He suggested leaving the dipstick on that side of the engine but taking the dipstick out and corking the hole and only putting it back in while the engine was off to measure oil level. Will that work?

Post by **DCaff300ZX** » Sat Oct 20, 2018 7:58 am

garyfabian wrote: ↑
Fri Oct 19, 2018 6:04 pm
I brought a friend to drill the hole but we ran into some compiications that prevented us from trying. He did come up with a suggestion that I wanted to find out if that would work. He suggested leaving the dipstick on that side of the engine but taking the dipstick out and corking the hole and only putting it back in while the engine was off to measure oil level. Will that work?

Given there is oil pressure at least within the crankcase and is a closed system, I personally would not go that route and would look to do the job correctly- finishing the project with things at minimum the same as before the work done in order to ensure no further problems.
Not an area where failure is good, you don't want your oil suddenly on the ground because of something you did to the car.

VG30DE from Infinity to 300ZX swap?

VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Re: VG30DE from Infinity to 300ZX swap?

Nissan Forums

Infiniti Forums

Datsun Forums

Technical Forums

Classifieds / Marketplace

Nissan Motorsports

General Forums