Royal Flush

Okay thats what we were planning on doing in the first place, but it is safe to change from lite to heavy oil?

It seems to be coming from around the engine. When its turned on, it shakes more than I remember, but that wasn't my car so I've never really paid attention to it under the hood (91 Q45 is mine) Oil types by normal to synthetic, or light to heavy?

After my sister came back from San Antonio to Houston one day, the engine was sounding alot louder (or something under the hood) Its got 83,000 miles and my father thinks that its a problem with the oil (He says we have to use thicker oil) But I was thinking maybe something in the engine got loose and is causing the louder noise. What do y'all think? Gonna go to Autozone tomorrow for the oil to see if that works he also said, not to use synthetic if you use the normal for a long time. Is this true too? What do y'all say might be the problem/fix for the louder engine after the 6 hour trip? Yes it just passed inspection too so thats aite.

I was thinking a dark gray with two orange stripes on the top with smaller white borders

Well right now I'm thinking I'm gonna either rebuild the L24 it came with or try to find an L28 and rebuild that since I will sell the Q for maybe $3000 to get some cash to work on the car. I'm used to wiring, soldering, assembling, but I've never dont welding which is why I have one of my buds with me that is gonna help. Are there any other sites I should look at for Z stuff (Maybe another forum, parts, etc?) Heh I dont think I'll do a two tone on the Q, I'll keep it a luxury car, I was thinking of putting in a nice sound system though. But yeah, any info on how long it would normally take to rebuild the L24 alongside take care of alot of body rust and replacing a few things like filters, oil pumps etc?

First off I'd like to say hello, and I'm new to these forums so Hello. Right now I have a 1991 Infiniti Q45 in which everything works, and I'm probably going to get a '73 Datsun 240Z next Sunday if all goes well that needs some good TLC. I've seen lots of posts of people swapping the L24 engine with the Q45's Engine and it is something I have been seriously considering (also to prove my father wrong). So I know that this is possible to swap the engine with my old car into the new 240Z but I need to know what other parts would I need. I know that the 240Z is Manual but the Q45 is Automatic so would I need some clutch parts or what? Basically I would like maybe a list to show the jist of what I need if I was going to swap the Q45 engine with the 240Z, and if possible, It'd be very helpful if there was a site that had maybe a guide with pictures so I can see and read up on what this would take. If I feel I cannot do this, then I will just rebuild the L24 or try to swap with an L28 and rebuild that. Also the Q has over 120,000mi so I'd like to know if any sites have good engine rebuild parts that aren't sites that have bed customer service. Most replies are thanked and I hope I can get that '73 Z, if I do I will update y'all regularly on the progress of it. Also, how long does it normally take to rebuild a car if I have alot of free time to work on it?