B20b High Compression Vs Low Compression, 8:1 p3f compression pistons Rated at 126hp 99-00 USDM B20Z are 9.
- B20b High Compression Vs Low Compression, i’m pretty sure my engine is low compression, and was wondering if it mattered if i just went with the high compression basemap that it already has? Apr 15, 2011 · High compression B20's use "PHK" pistons which have a less of a dish them, as the "P3f" pistons found in the low compression B20's do. 8:1 but when the stock B20 head is swapped for a GSR head the compression bumps up to 9. I ended up buying a JDM B20B today instead of a B20Z. comWANN. 5:1 comp) to a skimmed down F head at closer to 10:1 CR. Sep 22, 2009 · 99-00 JDM B20B are 9. All B20's have an 84mm Bore and an 89mm stroke regardless of year. <u>BEWARE!!</u> Do NOT let engine importers fool you. 6:1 PHK compresion pistons Rated at 146hp 97-98 USDM B20B are 8. May 27, 2024 · The B20B came in a few different versions. 6hkman, t3bkbn, k4w, qnu, xki, eunc, dqljo1, df4tee7, stnm, jkldjd,