We collaborated with airflow specialist Dave Visner to create a better carb hat. One that is aesthetically more pleasing, fits a wider variety of applications and reduces power-robbing turbulence.
Each Hat comes with an O-ring to seal the hat to a 4150-style carburetor flange; one domed, stainless steel hexagon nut in your choice of size – 1/4-20, 5/16-18 or 3/8-16 — which will secure the hat to the centrally located stud of the carburetor (the nuts are flanged and grooved on their undersides and each contains an O-ring); and one special Clampco 4.0in T-bolt clamp.
Please select the correct nut size to fit your specific carburetor from the list below when ordering. Nuts are also available for purchase separately.
Important! Be sure to add your phone number in the “notes section” on the PayPal check out page in case we have any questions pertaining to your order. Thank you.