Know this SLEEPER ENGINE SPECS

The beating heart behind any classic sleeper is a powerplant with punch — here are five builds that make the numbers but still keep your Ford’s driveability.

The noise and power of a race-spec motor may well get you all excited, but on the street are you better off with something, dare we say, a bit detuned? Ultimate tuning results in massive horsepower figures, but at the high end of the rpm scale. And that translates amongst other things into cams that don’t come on song until 5000 rpm and peak at a heady 9000-10,000 rpm. Coping with those extremes could mean wallet-busting steel components for the majority of classic Ford engines. But it’s not just that — your car might even be slower in the short-spurt type of road network we have. Mid-range power may well be better than ultimate numbers. So let’s look at just how far you can go for top-spec, liveable horsepower that…

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Classic Ford (Digital) - 1 Issue, Spring 2025

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