FFT Style Special Application Inserts                                                                                                                                                                                                                                                                                                                                                                                 FFT Special Application inserts are made to match exact geometry of various applications such as head bolt and main bearing bolt holes for engine blocks. Many have counterbores at the top of the inserts or are made to a specific length.                                               Special Application Inch Size Inserts                                                             InsideThread Size A B C Drill Size Drill P/N Tap P/N Install Tool P/N Starter Kit P/N Application 3/8-16 0.595 1.370 0.300 33/64" FT4DB-1 FT4FT-1 FP43816K FFT4SP007K GM starter motor BH 7/16-14 0.595 1.655 0.800 33/64" FT4DB-1 FT4FT-1 FP4SP004K FFT4SP001K GM Small block M B 7/16-14 0.595 1.053 0.225 33/64" FT4DB-1 FT4FT-1 FP4SP004K FFT4SP003K GM Small block M B 1/2-13 0.735 1.000 0.000 21/32" FT5DB-1 FT5FT-1 FP5SP007K FFT5SP009K Chrysler 318-340 HB 1/2-13 0.735 1.540 0.375 21/32" FT5DB-1 FT5FT-1 FP5SP007K FFT5SP004K 6.9 & 7.3 Int. MB 1/2-13 0.735 1.438 0.250 21/32" FT5DB-1 FT5FT-1 FP5SP007K FFT5SP006K Cat 3208 HB 9/16-18 0.735 2.375 0.375 21/32" FT5DB-1 FT5FT-1 FP5SP004K FFT5SP002K DD 71&92 crankshaft 9/16-12 0.860 2.550 0.775 51/64" FT6DB-1 FT6FT-1 FP6SP007K FFT6SP004K DD 53 series MB 5/8-18 0.860 2.125 0.625 51/64" FT6DB-1 FT6FT-1 FP6SP006K FFT6SP001K KT Cummins crankshaft 7/8-14 1.220 3.875 1.437 1-9/64" FT9DB-1 FT9FT-1 FP9SP001K FFT9SP002K Cat 3508-16 M B 7/8-14 1.220 3.250 0.900 1-9/64" FT9DB-1 FT9FT-1 FP9SP001K FFT9SP003K Cat 3400 MB 1"-8 1.220 2.000 None 1-9/64" FT9DB-1 FT9FT-1 FP91008K FFT9SP004K Cat 793 wh