Please check my poor pistons

[turbodagain]

Hey guys im in need of some advice. I just purchased a 1992 gsx that obviously had the timing belt slip and valves met pistons. Well i just pulled the head , I have a spare head to put on this car, but now im unsure of if i can keep the pistons. please take a look at the pics and tell me what you think.. thanks alot. this is the worst one. ive seen many pistons that got nailed by the valves but not as hard as this.

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[igopoopy]

no holes your fine
same with me

 

[turbodagain]

should i try to sand down the sharp ridges? if so with what grit sand paper?

 

[Defiant]

Use emery cloth, not sandpaper. Work toward the center of the piston so you're not dumping grit down the bores. 600 grit or so. You just need the sharp parts gone.

 

[diambo4life]

Hey guys im in need of some advice. I just purchased a 1992 gsx that obviously had the timing belt slip and valves met pistons. Well i just pulled the head , I have a spare head to put on this car, but now im unsure of if i can keep the pistons. please take a look at the pics and tell me what you think.. thanks alot. this is the worst one. ive seen many pistons that got nailed by the valves but not as hard as this.

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Are you kidding? Those pistons are fine. As stated, just smooth the edges a little bit. I like using the 3M rust/paint stripper wheel (with drill) on mine. A good idea to tape off along the circumference of the piston so you gon't get grit between the cylinder wall and piston.

 

[1fast97gsx]

... those aren't bad at all. My friend had 1 that had a hole all the way through.

 

[92redman]

should i try to sand down the sharp ridges? if so with what grit sand paper?

You can't leave sharp edges because that makes a spot that will get really hot and cause detonation, so yes.