Please Help Identify Pistons

[6-bolt]

When I bought the car I knew that that the motor was stroked. After pulling the oil pan I found that the rods were stock. So I am now replacing the rods with Eagle. However I do not know what kind of stroker pistons where installed. Please see the pick below. Can anyone help identify the manufacture? I have searched pics on SB and other vendors but couldn't find a match. Thanks for the help.

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[92awddsm]

Thats not a stroker piston, its a standard 2.0 replacement. The wrist pin on a stroker is moved up into the oil ring, yours are in the stock location. It could possibly be a 2.4 but its hard to tell. Google the part # from the top of the piston and you should be able to come up with something.

 

[JayRolla]

I was about to say that looks like a stock piston. You most likely have a 2.0.

 

[6-bolt]

It is the stroker. Please see the pics below. The stroke is 10cm. After doing research, I did find that the pistons are Wiseco. The number is 6559M865 off the piston. The 865, means the bore is 86.5mm. I beileve that the model number is K559M865, which is nice. The go for ~$440 and compression is 8:1. Can turn up the boost .

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[92awddsm]

Those are not stroker pistons, they are replacement .60" overbore 2.0 pistons. The part # is k559mxxx and has 6559mxxx stamped in the top of it. The stroker pistons are k571mxxx and has 6571mxxx stamped in the top of it. Trust me, I had some.

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[6-bolt]

Sorry for the confusion, but I was showing that the motor was stroked. I agree with you, the pistons are regular pistons. I believe that the engine builder used different rods that are 13.8cm. I have attached some pics of the rods. They have "G6.M" on the side and "K-" on the bottom. Now I have to figure out what kind of rods were installed. Thanks for the help!

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[92awddsm]

Those are stock 1g 6 bolt rods.

 

[6-bolt]

I am a little confused. I have non-stroked pistons and stock 6 bolts rods. However the stroke is 10cm, were stock is 8.8cm. How can I have a stroke motor with regular components. The 1.2cm have to be taken out of the pistons or the rods, or I am just being a noob and missing something completely. Thanks.

 

[92awddsm]

You are also measuring the depth of the dish in the piston without taking that into account. Spin the engine to tdc and measure depth again in the same spot, subtract from first # and that will give you your stroke. Easy noob mistake.

 

[Raph]

what he said.^^damn your fast

 

[6-bolt]

That is were the 1.2cm is hiding. You are right, I measured it and got 8.8cm. The bad thing is the motor is not stroked, just bored out. Better then nothing. Thanks for all the help.