Jones Racing Products 6-Rib Serpentine Water Pump Pulley - 4.5 in Diameter - Black 7658-16 These heads will work best

These heads will work best with a primary operating range of 3000-7000 rpm's (This range is an average and will vary with engine displacement as well as component selection)

1965-1965 International D300

1999-2010 Ford F-550 Super Duty

Mechanical Secondary Holley 4150 / 4150 HP Carburetors

2011-2015 Ford Mustang

Jones Racing Products 6-Rib Serpentine Water Pump Pulley - 4.5 in Diameter - Black 7658-16 These heads will work bestProduct Description: Water Pump Pulley Serpentine 6 Rib 4. 5 in Diameter 5 8 in or 3 4 in Shaft 4 Bolt Pattern Aluminum Black Anodized Universal Want more horsepower? Jones Racing Products have the right drive kit for you! Save horsepower, reduce harmonics, and experience our unparalleled lightweight design and longevity. Jones Racing Products offers high performance drives for the alternator, power steering, dry sump, fuel pump, vacuum and water