Piston ID

[JamesR]

i bought a set of TRW Forgies [or so i was told..]
and now im not so sure they are what i was told they are...
unfortunatley i bought these months/years? ago, and figured that ill probably never use them now, so ill sell them.
but can anyone tell me if they are any good?
just realised they're standard size too..

cheers.

[gen mk 1rs2000]

got any side on pics ?

[G Dub]

Wouldnt the casting numbers on the underside indicate that they are cast and not forged?

[mickas]

They are cast. And appear to have a heap of detonation on that pitted one

[JamesR]

[JamesR]

iv never really seen forged pistons, so i cant really compare..
but theres no casting lines anywhere which threw me off i guess.

oh well.

[joe84]

they do look like trw forgies as it look like the gudgeon is retained by those circlip thingies i can double check the numbers later i do have a set here

[joe84]

numbers match so they'll be forgies, they just have the lumpy tops taken off

[JamesR]

thanks Joe.
i do remember looking them up ages ago, and i thought i found a reference to that number, and being trw's, but when i checked again, couldnt find anything, so started to seriously doubt myself.

[joe84]

what are some opinions on re using a piston with that much pitting ?? i wonder if there's enough meat to give it another shave ?

btw james pm sent

[JamesR]

[mattj]

[escortmk1600gt]

[Tom Murphy]

[mattj]

[Tom Murphy]

I would guess that you shuld line up the little indent in the piston crown with the inlet valve. Having thouht about the pitting a bit more I think that you should trial build the block as the piston may come obove the deck. I had a set of TRW forged pistons and when they were machined flush with the deck all the indents for the valves were gone.


Tom