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This is a matching set of Mahle 92mm 2.8 RSR Pistons/Cylinders. They were in an engine I purchased that had less than an hour on the build. These are perfect and half the price of a new set. Feel free to call me at 817-932-5492 if you have any questions. Asking $2950 firm. If you buy a new set they will be the same as these after 10 minutes of run time.
HI Do you know the compression ratio??
Compression ratio epends on the heads used (rare 2.8 rsr or 2.4/2.7 heads), machine work to heads, and shims used to adjust deck height when assembling motor. I've seen compression ratios as high as 12 to 1 using smaller heads and 10:1 with actual rsr heads. Again, you can low compression ratio in 2.4/2.7 heads by having machinist create more volume by removing material in the right spots or by increasing deck height using shims.