I have MAHLE Motorsport piston and ring set WRX209917I10 for sale.
Bore (in): 3.917 in.
Bore (mm): 99.500mm
Piston Style: Dish, with four valve reliefs
Piston Material: Forged aluminum
Compression Height (in): 1.209 in.
Piston Head Volume (cc): +10.00cc
EJ20 Honing - What Grit?
I'm planning to hone my EJ20g block for v5 207 forged pistons and new rings. There are also some light scratches I'd like to see disappear as well, nothing major.
What grit should I use for the initial hone and for a final hone to achieve the proper arithmetic average...