Thankfully, on the Duratec, we don’t need to worry about plug washers as they have a tapered seat.
Thanks Doug, that's useful to know

This is my first Duratec and I'll be giving Monty his first engine service next month. I'm used to the Rover V8, the old B Series and wet liner Triumph engines, so the Duratec is an absolute revelation for me!
Rover V8 exhaust ports....
![[Linked Image]](https://i.ibb.co/pnF9ZdH/Rover-V8-Inlet-ports.jpg)
Duratec exhaust ports.....
![[Linked Image]](https://i.ibb.co/DtFvp6P/Duratec-Exhaust-ports.jpg)
Rover V8 intake ports.....
![[Linked Image]](https://i.ibb.co/2PpFq8x/Rover-V8-Inlet-ports.jpg)
Duratec intake ports......
![[Linked Image]](https://i.ibb.co/6YjKhkk/Duratec-Inlet-ports.jpg)
No wonder I'm able to target over 100hp per litre on the Duratec, but spent 11 years just trying to squeeze over 60hp per litre out of the old Rover. I did eventually get 250hp out of my 4.0 litre TVR Chimaera, but I can't help thinking if it had heads as good as the Duratec it would have been making over 400hp

The Duratec is an amazing thing for sure, with what to me look like race car heads, this is especially mad when you consider it’s an engine found in old Mk3 Mondeos, no wonder its so popular and Caterham are still using the 2.0 Duartec to this day.
I’m really showing my age now aren't I

Dave.