300zx vs J30

[PIN GIO 2]

I planning order 300zx engine gasket kit price $260 and i check j30 engine gasket kit price $190 i am not sure if j30 can fit in 300zx engine? i am look for cheap thanks.

[dsastr_clan]

they seemed to be the same engine, maybe

[PIN GIO 2]

yeah both are vg30de but why different price?

[hOngsterr]

j30 isnt a sport car?
Z32's are?