The 454 Chevy motor is a high-performance engine that produces a lot of heat. Without an oil cooler, the oil in the engine can quickly overheat and break down, which can lead to engine damage.
An oil cooler helps to keep the oil in the engine cool by circulating it through a heat exchanger. This helps to prevent the oil from overheating and breaking down, which can extend the life of the engine.
If you are planning to run a 454 Chevy motor, it is strongly recommended that you install an oil cooler to protect the engine from damage.