Finally have the aluminum valve covers on. These have serviceable spark plug seals, and you can powdercoat them. One issue I had was some fitment with the driver's side pcv and the oil fill stem, both need to be trimmed. The farthest front passenger side coil pack didnt bolt up, no issues yet though, you can definitely make a bracket though.

 

Are these factory aluminum valve covers from another Nissan vehicle or are these from an aftermarket supplier?

 

I believe it came from the Pathfinder, not 100% though.

 

They are from an 2000-2001 (possibly 2002) Nissan Pathfinder as well as a 2001 Infiiniti QX4

Make sure they have the VQ35de, the older models of the Pathfinder and QX4 have a different engine

 

Also I need to add that the newer models of the Pathfinder and QX4 have composite valve covers just like our 350zs

 

Gotcha. I was asking because they look different than the pair that I have my car which are from a pathfinder. I wasn’t sure if someone was making them aftermarket now.

 

What year pathfinder do you have? The 1999- pathfinders have a different engine, and the ones after 2001 (or 2002) have the VQ35de but have composite valve covers like the z

 

I don’t and have never owned a pathfinder. I have VQ35DE metal valve covers that were from a 2001 QX4 (Infiniti’s variant of the pathfinder) if I remember correctly. Mine are modified...

 

I like the oil fill stem modification and -an line fittings welded on. Did you mill the raised surface of one of the holes where the coil pack mounts to as well as deleting the crossover nipples? I removed a couple of the extra threaded holes that weren't needed on the valve cover.

Also did you do something so that the OEM 350z coil packs fit? Looks like you may have made the diameter larger so that the coil packs sealed against the valve cover.

 

@Kwame care to share some more info on your VC mods? Which filler cap did you end up using? It looks like a Trick Flow push-in style cap that I've seen on Summit before.

 

I may have bit off more than I can chew as these were modified a long time ago and I’ve honestly forgotten all that was done.

The oil filler neck and cap were relocated because of the Jenvey ITB kit I purchased and have yet to install. This is the oil filler neck and cap. https://www.summitracing.com/parts/s...caAurUEALw_wcB

From what I remember the internal baffles were removed to make clearance for the camshaft lobes (I’m running Tomei 280s intake and exhaust). A custom “baffle” was made right on the internal side of the AN fittings. I believe we did shave down the casting for the first coil pack on the passenger side.

That’s all I can remember from over ten years ago.