performance · FF-0280

How high should a built Flathead be revved on the dyno?

Steve wants to start at about 5,500 rpm and, if there are no problems, go to 5,800 toward the end. He also has a pulley about 10 percent smaller to try if the engine is happy. Ed notes that in stock form these Flatheads normally run to about 3,500 rpm as the fastest they ever go.

Expert

Steve Coppock and Ed Smith

Evidence

expert attributed

Component

rpm limit

Applicable scope

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