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Old 04-29-2010, 03:04 AM   #1
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Default Things to look out for when buying second hand pistons

So I am thinking about buying wiseco pistons, second hand

http://vancouver.en.craigslist.ca/rd...712868738.html

locally but I don't exactly know what to look out for. Any tips and info?

can rings be reused as well?
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Old 04-29-2010, 03:09 AM   #2
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i would stick em in the motor and confirm the end gap but i see no reason why they couldnt so long as your **** is still standard bore and his **** is still standard bore.
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Old 04-29-2010, 03:12 AM   #3
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that piston is wiseco:K554M785
so .5mm overbore

bore (mm) 78.500mm
Piston Style Dish, with four valve reliefs
Piston Material Forged aluminum
Compression Distance (in) 1.258 in.
Piston Head Volume (cc) +13.00cc
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Old 04-29-2010, 03:23 AM   #4
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used pistons :/
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Old 04-29-2010, 03:25 AM   #5
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Quote:
Originally Posted by Full_Tilt_Boogie View Post
used pistons :/
+1, plenty of ways to be cheap, used pistons isn't one I would recommend.
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Old 04-29-2010, 03:27 AM   #6
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Quote:
Originally Posted by mekaw View Post
that piston is wiseco:K554M785
so .5mm overbore

bore (mm) 78.500mm
Piston Style Dish, with four valve reliefs
Piston Material Forged aluminum
Compression Distance (in) 1.258 in.
Piston Head Volume (cc) +13.00cc
at minimum you will need to get your **** bored then.
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Old 04-29-2010, 09:51 AM   #7
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If they have holes in them then I would walk away. Also, if the rings come out in little partial pieces, that's not good either.

Or just get new pistons since the machine costs and the time involved in installing any set of forged pistons are the bigger expense than the pistons themselfs anyway.

If you do get them, I would have your machinist look them over carefully when doing the work on the block.
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Old 04-29-2010, 10:38 AM   #8
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if u wanting to buy pistons i would recommed buying them new instead of buy used ones.
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Old 04-29-2010, 11:03 AM   #9
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Personally, for $100 I would buy them and take them to a machine shop to get looked over. Its worth the risk to me to potentially save $350-400. They can test them for cracks etc... If they turn out bad then you have a loss, but the chances of all of them being bad is slim. Then you can just order a couple replacement slugs direct from wiseco. Personally don't see the downside other than the potential $100 loss. If you can afford to risk that I say take it.
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Old 04-29-2010, 11:21 PM   #10
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Hardness test them, if it's still around 70 HRb you should be fine give that there aren't any major wear issues...
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Old 04-30-2010, 12:03 AM   #11
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Obviously that picture the seller has up isn't recent...

I'd have to agree with some of the others and side with the way spend an assload of money to build a motor and have question marks on your pistons.
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