the difference is sm4 for an evo just needs the loom and ecu where as mine is running its own boost controll built in with twin wasted spark coil packs and braided loom and it was over 3k ..... i think the bloke who sold sm4 for a cossie for £850 is abit of a pratt...

and 2k for a complete 10 long studded 200block engine 2k are you fucking mad.

harvey gibbs charges 2k just to do the liners and studs let alone the 2k crank, that bottom end must have cost in excess of 8k to do properley so easierly 4-5k people who dont now what they are on about should be quiet.....