Pistons

[Fiascoxl]

i recent purchased a motor, long block, well when i took to apart it had head studs. So i pulled the oil pan off and notice it had eagle rods, then i pulled the head and found the pistons, they have a number on them i was just wondering if anyone knew what compression they were? trying to get a little info, i tried to look up number but didn't have luck. any help thanks


here is the number
6559M855 4732J

 

[Palmetto_TSi]

wiseco forged pistons...

Wiseco 6548M855 - Wiseco Sport Compact Pistons - Overview - SummitRacing.com

 

[Fiascoxl]

yea i figured they were wiseco but i wasn't sure since the number didnt match up completely

 

[Palmetto_TSi]

Yeah, I searched the first string of numbers which is the series model number. Sounds like you got a decent buy.

sorry, this is the right link: http://www.summitracing.com/parts/WIS-6559M855/

 

[99gst_racer]

6559M855 is the part number for an individual piston from set number K559M855. Those are .020" over 8.3:1's for a 2.0L 6-bolt.

 

[Fiascoxl]

okay thanks guys