XU9 Mi16 Rebuild - 2 stages

[Fumanchu 2]

I'm looking to do a 2 stage rebuild on the 1.9 Mi16 unit fitted to my 205 as its currently showing low compression on cylinder 3 and the leakdown tests showing air escaping into the oil system. 

 

Due to other competing demands on my wallet, i'm looking to have the rebuild done in 2 stages:

Stage 1) Forged high comp bottom end + standard head 

Stage 2) Rebuilt head inc larger valves, machined for double valve springs and solid lifters

 

For stage 1 - I'm looking to get new liners as mine are ovalled. Hence, am looking at getting a set of Westwood ductile liners - are these in standard size only or can I go bigger for more displacement? For the forged pistons and rods, whats the recommendation for a set that will handle track/rally use in the future? For the head, what's the highest duration I can go without having to change the springs/lifters? Any recommendations on cam, e.g PeterT would be welcome. I'll be running an aftermarket ECU (ECUMaster black) with 48mm Jenveys (to accommodate the stage 2 build).

 

Stage 2 - In the UK, where's the best place to do the headwork inc larger valves and the machining work? With headwork done, what are the recommended cams?

 

Thanks in advance.

Edited 6 hours ago by Fumanchu