Ford 245ci Specs: 3.953 x 3.323 in

Ford 245ci specs: 3.953 x 3.323 in (100.4 x 84.4 mm) bore and stroke, shared by all 5 versions. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	245 ci
Cylinders	6
Bore	3.953"
Stroke	3.323"
Advertised power	155–210 hp
Years	1990–2011

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
Cologne 4.0 OHV	245 ci	3.9528" × 3.3228"	—	155–160
4.0 SOHC	245 ci	3.9528" × 3.3228"	—	205–210
4.0 SOHC Cologne	245 ci	3.9528" × 3.3228"	—	210
Cologne OHV V6 EFI	245 ci	3.9528" × 3.3228"	—	160
Cologne SOHC V6	245 ci	3.9528" × 3.3228"	—	207

Factory cars with a Ford 245ci

• Ford Ranger: 1990; 1991, 160 hp; 1992, 160 hp; 1993, 160 hp; 1994, 160 hp; 1995, 160 hp; 1996, 160 hp; 1997, 160 hp; 1998, 160 hp; 1999, 160 hp; 2000, 160 hp; 2001, 207 hp; 2002, 207 hp; 2003, 207 hp; 2004, 207 hp; 2005, 207 hp; 2006, 207 hp; 2007, 207 hp; 2008, 207 hp; 2009, 207 hp; 2010, 207 hp; 2011, 207 hp
• Ford Explorer: 1991, 155 hp; 1992; 1993, 160 hp; 1994, 160 hp; 1995, 160 hp; 1996, 160 hp; 1997, 160 hp; 1997, 205 hp; 1998, 160 hp; 1998, 205 hp; 1999, 160 hp; 1999, 205 hp; 2000, 160 hp; 2000, 205 hp; 2001; 2002; 2002, 210 hp; 2003; 2003, 210 hp; 2004, 210 hp; 2005; 2005, 210 hp; 2006, 210 hp; 2007, 210 hp; 2008, 210 hp; 2009, 210 hp; 2010, 210 hp
• Ford Mustang: 2005, 210 hp; 2006, 210 hp; 2007, 210 hp; 2008, 210 hp; 2009, 210 hp; 2010, 210 hp

What varies across the family

All are oversquare — bore larger than stroke, which favours revs over low-end torque.

Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.

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