airflow · FF-0267

Why does a Flathead V8 have only three exhaust ports on each side?

Because the center two cylinders on each bank share one exhaust port. Steve points this out on the custom headers made for the test, which carry exhaust gas temperature probes. He adds that the readings are a little different on a Flathead because the exhaust port runs through the block and is cooled somewhat.

Expert

Steve Coppock

Evidence

expert attributed

Component

exhaust ports and headers

Applicable scope

Steve Coppock's supercharged 8BA-style Ford Flathead V8, about 290 cubic inches, on the engine dyno at Klein Engines