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

Look between 1st and 2nd spark plugs to see what head you have. Should be an E88 or N42, maybe N47? That will tell us what exhaust port shape you have and whether or not you have the injector notches. If it's an E88 you can use the 240 gasket. Fel-Pro has a universal diamond shape exhaust manifold gasket but it has the injector notches too. From what I remember it will work with carbs but I've never used one so maybe someone can tell us? If it's the OE E88 I would use the right gasket with round intake holes and square exhaust ports. I bought mine through Nissan dealership but zcardepot.com has them too.

Here's a good read on what you're doing. You might read something helpful.