These new gaskets fit 4160 series 600 CFM Holley 4 barrel carbs with vacuum secondary, 1-9/16" throttle bores and no removable jets in the secondary. LIST # 1850-9^, 1850-10^, 1850-11^, 1850-12^, 1850-13^, 1850-C^, ONLY.
Holley 4160 Series List 1850 Carb Kit For 600 CFM/External N/S And V/S - 2 X 4.
Holley 4160 Series List 1850 Carb Kit For 600 CFM/Internal N/S And V/S - 2 X 4.
Holley 4160 Series Carb Rebuild Kit For 780 CFM With List 7010 & Vent Valve.
Holley 4160 Series Carb Premium Kit For 780 CFM With V/S List 7010.
Holley 4160 Series Carb Rebuild Kit For 780 CFM With Vacuum Secondary List 7010
Holley 4160 Series Carb Rebuild Kit For 450 CFM With List 9776.
