what r the differences from the 1974 260Z and the 1975 280Z?

does the '75 280Z actually have the airvents in the hood?

https://www.google.com/search?q=differences+from+the+1974+260Z+and+the+1975+280Z&rlz=1C1BOFA_enUS494US494&oq=differences+from+the+1974+260Z+and+the+1975+280Z&aqs=chrome..69i57&sourceid=chrome&es_sm=0&ie=UTF-8

what r the differences from the 1974 260Z and the 1975 280Z?

260Z

2.6L engine with carburetors

"early" cars (most of them) have smaller bumpers than the 280Z

The stock carburetors are considered problematic by most and are frequently changed out for the 70-72 SU style carburetors.

280Z

2.8L engine with electronic fuel injection

does the '75 280Z actually have the airvents in the hood?

Not standard, but some have added them.

1977-78 280Zs have the vented hoods. The vents weren't just added. That area was stamped for the vents which bolt in.

Chuck

so, bumpers, badges, ornaments, emblems and the electronic fuel injection is the difference from the outside? (not talking about engine sizes)

Hood and C-pillar emblems are the same. The 1974.5 260Z has the same bumpers as the 75-76 280Z. There may have been some different paint options too.

Chuck

ohh, well then my 3D project isn't as complicated

will for sure add ur name in the credits