Holley 4160 Series List 1850 Carb Kit For 600 CFM/External N/S And V/S - 2 X 4.

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^, 1850-1^, 1850-2^, 1850-3^, 1850-4^, 1850-5^, 1850-6^, 1850-7^, 1850-8^, 1850-S & SA ONLY.