Sunnen Hone Stones for Cast Iron Blocks Replacement Stones with wipers, and sets of extenders. Would like to trade for SUN distributor strobe P/N's NOS (From a Closed NAPA Store in 2014) AN-101 70 Grit QTY 2 Sets (Retail $28/set) AN-306 70 Grit QTY 4 Sets (Retail $28/set) AN-306 220 Grit QTY 4 Sets (Retail $28 /set) AN-355 Stone Extenders Larger Bore QTY 4 Sets (Retail $155 /set) Call 309-364-9300 DOUG