Hi guys, quite new to this forum, I've got a mk3 escort with an rs1800 zetec fitted, however I want to swap it for an st170. It's currently running all the zetec ecu/fuel injection/loom etc.

I've been told it should just be a case of swapping the engines over? I'm aware that I have to buy an idler pulley and get the bracket that allows the waterpump to spin in the opposite way, and fit a CVH alternator, but what else is involved? Someone mentioned I should just keep my rs1800 inlet but have it port matched the st170 engine, no idea why they said that when surely I could just use the st item?

In terms of the loom, will everything connect up to the new engine as it currently does?

I apologise for all the quesiton, I'm usually a VW fan but Ive recently come to the 'dark side' as people keep putting it, so I'm still trying to familiarise myself with the whole zetec thing.

Thanks in advance

 

No

 

the vvt won't work with your zetec ecu