Hi Tommy,
Sorry dude I replied to you in my other thread but then realised that was for the L-Reg engine (1993 one).. sorry mate that sold ages ago.
The only engine I have now is the M-Reg 1994 engine which has done roughly 64,000 miles and I done an oil change twice in 6 months using Castrol Edge.
I can still deliver it next day via my company driver but it's not £550 sorry.. i'll let it go for £650 without throttle/intake/injector rail or £750 with the throttle, injector rail and intake.
With it in the car I could never fault it, but removed it to fit my sr24det engine
Cheers.