I'll have to check. My buddy owns it.
If it has, it will have a fat headgasket.. (or no flattop pistons, like in a L26 (euro))
I think that when i tested a E30 on my L24 it had a compression around 1:12 ?? or even higher, after a few runs the gasket went... And i installed the (revised) Original E88 back on it.. was in 2007..(car ran fine it just needed new gaskets and seals then.) till today it runs beautiful but after 48 years the pistonrings are getting very old..
Last year i went to a dealer in Germany and i drove it over 200km/h on the German highway and i think i have blown a valveseal or something.. (broken a pistonring? comp. is good at all 6) , since then it uses a bit to much oil.. ( my 240z is up for an complete overhaul after i finish my orig. dutch (euro type) 280zx 2+2 slick roof..)