GRILL COWLING TO IMPROVE ENGINE AND RADIATOR COOLING
(A Work In Progress)
The 350 V-8 internal combustion engine can produce a lot of power.  As a result of the power, a lot of cooling is needed to protect the engine.

The cooling is accomplished by the radiator.  On stock 350 V-8 engines, the radiators usually have cowling in the grills to ensure no ram-air, and no cooling fan air flow by-passes the radiator.

Early Gorilla projects had some engine over heating problems until builders put some sort of venting, or cowling under the hood.

We attacked the cooling issue from four different design points.  First, we have a 2000 cfm electric fan that is thermostatically and manually controlled to ensure cooling air is available when needed, and not loading the electrical system when it isn't needed.  Second, we chose to install an oil cooler behind the radiator to reduce some heat load through cooler oil.  Third, we installed auxiliary series transmission cooler to further reduce the heat load on the radiator, and fourth, we added the cowling on the grill in the hood.

The cowling seen to the right is not fully fabricated, but you can see that it is made of 26-gague galvanized steel, riveted together.  Seams are sealed with aluminum duct tape.  The trailing edge of the ducting will have either rubber gasket or skirting to provide a "seal" with the radiator and A/C condenser to ensure no ram or fan air by-passes our cooling components.