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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » are Mahle pistons forged » Post Reply

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chrex

 posted on 7th Aug 09 at 23:24

the forged ones are actually stampled Mahle underneath...the cast ones arent.


philip2

 posted on 7th Aug 09 at 21:01

you'll have to take head off then to see what the bores are like;)

[Edited on 07-08-2009 by philip2]


Sean-B

 posted on 7th Aug 09 at 19:25

quote:
Originally posted by philip2
you need oversized pistons and think cheapest i get them for is about £200 a set + the machining £80.

have you got the block apart or still in car?


picking the whole c20xe up on tuesday. it's a late type coilpack with 80K on it


philip2

 posted on 7th Aug 09 at 18:57

you need oversized pistons and think cheapest i get them for is about £200 a set + the machining £80.

have you got the block apart or still in car?


Sean-B

 posted on 7th Aug 09 at 18:56

where is best place to get overbores from?


philip2

 posted on 7th Aug 09 at 18:36

yeah but only problem now is most blocks need an overbore. but £25 is about the going rate tbh:thumbs:


Sean-B

 posted on 7th Aug 09 at 18:31

quote:
Originally posted by philip2
early xe pistons were forged later were cast. are you building it stock or to take cams, etc?

i think if look under the piston by the gudgeon pin, there are some casting numbers. if have 86p im pretty sure there the forged mahles.


yea i've been offered a set and they have 86P31W2 empossed underneath. They would be to replace the pistons in a coilpack C20XE which i presume would have non forged.

So are these a good buy for £25?


philip2

 posted on 7th Aug 09 at 17:03

early xe pistons were forged later were cast. are you building it stock or to take cams, etc?

i think if look under the piston by the gudgeon pin, there are some casting numbers. if have 86p im pretty sure there the forged mahles.


craig_s

 posted on 7th Aug 09 at 16:54

they are just the original xe pistons


Sean-B

 posted on 7th Aug 09 at 13:27

looking at some mahle pistions for a c20xe

are these any good or are they just standard?