Spotlight Hobbies


Very nice - see info below...

A 251.92 cubic inch (4,128.29 cm³) DOHC naturally-aspirated four-cylinder racing „Offy“ with a 15:1 compression ratio and a 4.28125-by-4.375-inch (108.744 mm × 111.125 mm) bore and stroke, could produce 420 hp (310 kW) at 6,600 rpm (1.77 hp per cubic inch, 81 kW/L) making it incredibly power-dense.

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