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An external water bypass boss is machined into the front of the water crossover for use on 1996 later Vortec production engines
Straight Male 1/2" NPT to 3/4" (19
Heavy Duty Flexplate 168 Tooth Externally Balanced Small Block Chev 383/400 Aeroflow Flexplates are made from extra thick material and double welded & anodised
Rpm operating range 1600 - 6600 Duration advertised Inlet 273°
including competitor's pumps
Holley Vacuum Secondary Diaphragm HO135-4 Product:Default Title An external water bypass bossHolley Vacuum Secondary Diaphragm HO135 4 135 4 Vacuum Secondary Diaphragm Carb Numbers 0 1849 50 0 3310 0 4452 1 0 4548 0 6520 0 6619 0 6909 19 79 89 0 7002 04 05 06 09 10 53 1 0 7154 0 7351 97 0 7855 Rod length is 2. 054"
US$ 58.99
US$ 69.99
US$ 75.00
