Raj_FRST

can anyone tell me if this piston is a forged one or a standard zetec piston? the bore size is 86mm, i can't see any numbers but hopefully the valve cut out may give it away??

any help would be great

muz

whip the sump off and see.

Raj_FRST

and do what mate?

RS 5tu

iTrader: (2)

std zetec ones dont have a cut out for the valve clearance.

Raj_FRST

thats exactly what I thought, how can I find out what they are??

thanks for the replies

pa_sjo

Looks like a Vauxhall C20XE piston. Unlikely to be forged, most likely LPC - however this is fine!

There are no OE 86mm Zetec pistons, so that answers that question!


As seen here:

gtit

if its a silver top, can tell u they aint standard 1.6 or 1.8 ones, not sure bowt 2.0, can see they got a ring round them looking like compresion has been lowerd, but have pockets for the valves 2, wat u running,

clarke5700

clarkesss004.jpg?t=1221331241

thease are c20let pistons i fitted to my zetec?

clarke5700

saying that they do look more like xe pistons ie no dish

woolford

its def not a 2.0l piston. (blacktop) does look like c20let .measure the bore

clarke5700

but look at the dish in my lets compaired to the dish in the xe pistons?

muz

It will have a name or code on the backs of the pistons like this,



Mine being Accrilite as you can see.

Vaux piston, IIRC are Mahle so take a look note down the code and check it.

Raj_FRST

my pistons look identical to sa pjo's, are these any good? im only asking as im rebuilding the car, ive been sourcing parts for the following engine:
refurbished 2.0 (not 2.1) zetec block,
balanced crank and pulley
wiseco forged low compression pistons
farndon h section rods

im building this new engine with the intention of mating it with either a gt turbo or a stage 3 hybrid t3 with the boost set to between 15 - 20psi depending on how the fueling is

Raj_FRST

i did measure the broes and it is 86mm

Raj_FRST

one thing i did notice is that there was no decompression plate

woolford

sorry i did mean c20xe.. they are good but depends how high power you want.. not sure the limit

Raj_FRST

well im after a reliable 200+, 230 would be nice but im more interested with the torque and how it drives, I want it to pull nd pull and pull right up to 6000rpm, i think I will continue with my first plans and sell this block as it is and build the steel one for piece of mind

Red16

i know the pics shite, but these are standard pistons from a 2ltr silvertop zetec

Raj_FRST

you a star mate, thanks very much, at least I can rule out the possibility of someone just wacking a standard bottom end in, im going to put this block on ebay tonight, should sell for around the400 mark I hope???