mark_h

just a quick one , im wondering weather i can get away with a set of used focus rs pistons and rods, to use on my zetec turbo project ,

my block isnt new and has done about 80k its a 2l black top block.

pa_sjo

Unlikely. Every block i've measured has been excessively worn.

mark_h

just as i thought . lol

mark_h

what about if i got an 1800 block? then bored it to suit , and then installed the oil jets under the pistons to the block ?

cjwood555

You could bore it out further then liner the block? Would potentially be stronger as a plus point

xr-stu

i may be wrong, but im sure the 1.8 and 2.0 have the same bore.

im no engine builder, but i would imagine if your engine didnt have any issues with burning oil or excessive crank pressures (symptoms of worn rings/bores) then fitting a different set of pistons, with a new set of rings, would be fine?

pa_sjo

You are wrong, they're different bore and completely different blocks inside. Let's put it this way, Ford didn't just bore out the 1.8 to make a 2.0, they re-engineered the block - and that was only for 136ps.. so I don't think boring out the 1.8 by over 4mm is a particularly good idea

xr-stu

ah ok, just checked on Burton Power and youre right, dunno where i got given that impression.

still, i dont see a reason why you wouldnt be able to fit the RS pistons into a n/a engine assuming the FRS and n/a engines are the same internally. id check rod lengths though to make sure you wouldnt need them aswell.

matt p

Good idea in theory mate but prob wont work.

Why not just pic up a duratec bottom end from an RS?, cant be that much now.

mark_h

its finding a frs bottom end for the right price thats the problem

cjwood555

Brand new short blocks from ford are £800+vat trade price - that's what I was gonna use for my st170 turbo.

Chris

pani_k

iTrader: (1)

You can pick up a whole 2.0 engine for about £200 or so now.

cjwood555

That doesn't answer the question though - £800+vat for a brand new block and rotating assembly capable of handling around 360bhp is pretty good value! (Unless you want more power, of course!)