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Hi: We are working on a family '74 260Z project, and finally about to pull the L28 engine with the cracked block out of the car and replace it with another L28. The donor engine had fuel injection, but we are going to replace it with the dual-SU carb setup from the old engine. Someone told me a while back to use a specific set of manifold gaskets in this swap, and I feel like they said it was from an earlier engine, but I have now lost that piece of advice and just wanting to hear from some of you folks who know better than me before I order anything. Check this short video? Thanks in advance! Michael Project Z ICT

Congrats and keep going! All the best to you and your "Z"

Put on your party hats and toot your horns. Join me in celebrating the 54th Anniversary of the day I bought my 1971 240Z. Today, it sits in my driveway proudly showing its age. Unfortunately, I'm also showing my age and have a little more trouble getting in and out of it and working the pedals than I did in 1971. Great car, great fun, 54 years of great road adventures!

Thanks Captain! This is more the info I was looking for. I guess I will be able to verify once my assortment of plugs arrive from Mcmaster.

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KYB is pretty specific about using no oil, but many people (including me) defy that recommendation and use some anyway. Since you aren't using the oil primarily for lubrication, but instead, more for rust prevention, I would recommend an R&O oil. That means "Rust and Oxidation". R&O oils have additives intended to minimize R&O. Here's a couple links for info: https://www.valvolineglobal.com/en/r-and-o-oils/ https://www.phillips66lubricants.com/product/multipurpose-r-o-oil-mining/

Do you have any more info for this? Where did you see it?

I believe that all the tapered fittings are BPT. Probably dictated by world manufacturing climate at the time. Some of the BPT and their respective NPT counterparts are different enough to easily tell the difference, and some of them are really similar. For example, with some thread sealant, it usually seals if you stuff a 1/8 NPT plug into a hole threaded for 1/8 BPT. But, I think the BPT is correct. There also does exist some locations where a straight thread was used (temp gauge sender unit for example), but I've found them to be straight up metric thread, not BSPP.

I offer two different versions of my conversion bell housings to do the reverse tilt. One for the CD009 and one for the TL70. Most of the people that buy my head end up tilting them so I offer the bell housings to assist in that.

I'm also planning on removing the water tubes that run through the intake manifold. Are these BSPT as well? I'll find out soon enough, I suppose.

Did you read my post?

You will be quite supposed on how easily the bspt plugs thread in. You will know right away.

Sean will want to talk to you personally wanting to know what you are working with before he ships you one of his headers.

Now THAT is the info. I was looking for! THANK-YOU!

Ok, I got the race-sport header and can confirm that it will not clear the oil pan with the heatshield. I of course learned this after the engine was in the car and was not about to remove it so I rolled up under the car with a Dremel and cutting wheel to cut the heatshield off. Once that was done the header fit just fine. Hope this helps keep you from being covered in sparks cutting the heat shield off after installation like I was. :)

You can get them for a 4-wheeler at your local motorcycle shop. They have those metal bands that work great instead of the e-bay ones that send you zip-ties.

I could have waited, much longer!

It will be interesting to see how the BaT S30.world/Garage 44 auction goes when it is (eventually) listed. Im guessing the 240-Z has been shipped to the USA to sell rather than be passed in.

Sounds good! Make a plan and stick to it.

When I spoke with Sean @ ZStory, he recommended the Street-sport or Race-sport for my build. I'm leaning towards the street-sport, but as my build increases in cost, I may just re-use the MSA header I have for now and get the ZStory later, especially with the tariffs and all...

Here's a good one. Couldn't wait for Saturday. https://youtu.be/dQw4w9WgXcQ?si=grkFLcz2wcNdPoJP

Yep. Been down all those paths and I STILL don't know (for sure) what size they actually are. I see what you used, but I don't think you used what was intended to go in those holes. I've seen more references to BSPT than anything else, so I suspect that is what it is. There are MANY holes that can be plugged on these cars; holes in the block, holes in the exhaust manifold, holes in the thermo housing, etc. Looks like some may be just metric threads (which are a parallel thread), some are BSPT (I'm presuming, will confirm) and some others may be BSPP. I also googled, "240z balance tube plugs" as was suggested in the thread you linked to, and many of the resources provided by Google were links to places where one could purchase said plugs, but they were not identified as to which size or threadform they were, in fact, a couple of the sellers provided two different plugs with two different threadforms and said both, "will work". Call me picky, but I prefer to use the proper fitting when a threaded hole is provided.

Instead of saying "good morning" like normal I say "sigh". It's never good.