Recently i've been contemplating rebuilding the 1400 (carb) engine in my Nova. It's done over 120k miles, but still runs well. However it does burn oil (probably valve stem oil seals).
I think rebuilding is the best option rather than go for a bigger engine due to insurance. My old man is a mechanic and i've got the use of his workshop and all its facilities plus his experience.
Anyway, i've got a few questions before i decide to go through with it or not.
1. If i were to lighten and balance the con-rods, pistons and flywheel, is it as simple as just taking it to a machine shop and saying 'lighten and balance this'? Will they know what to do, i.e how much to machine off etc..?
2. I guess i'll go for a slight overbore, where could i get the oversize pistons to match? Is it just a case of oversized piston rings? Would the combustion chambers in the bottom of the head need to be machined to match?
3. What is involved in rebuilding the bottom end, like getting the crank reground and fitting new shells?
4. I'll be looking for a good bit more power when the rebuild is done too, i was thinking of a Weber 32/34 carb, fast road cam, K&N and a full stainless steel exhaust too. If this was running with approx 1.5L capicity what sort of gains would i see?
I'll definately rebuild the head and probably port the inlet, but not the exhaust ports, and grind down the valve guides too. Just generally make it flow a bit smoother.
Are there any other points anyone would recommend, like getting a professional to rebuild the bottom end?
I know this is a long post but i'm keen to know!
Cheers, any help appreciated.