This conversion kit allows the original Contental Motors 310-hp TSIO-520-LB engines to be replaced with Continental Motors 325-hp TSIO-520-WB engines.  Also, it increases the maximum takeoff weight and maximum landing weight from 6100 pounds to 6200 pounds.  Conversion kit includes STC for the corresponding aircraft, modification drawings, and AFM Supplement.  Engines and parts are not included and must be purchased separately. Eligible airplanes include 58P (TJ-3 through TJ-168) and 58TC (TK-1 thru TK-84)
Conversion kit price is $2,500.