Toyota 91ci Engine Specs

Bore, stroke, displacement and compression for all 3 Toyota 91ci engines, compared side by side. Plus rod ratio and head specs where published.

At a glance

Displacement	91 ci
Cylinders	4
Bore	2.913–2.953"
Stroke	3.335–3.425"
Compression	9.4–10.5:1
Advertised power	93–108 hp
Years	1995–2020

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
1NZ-FE	91 ci	2.9528" × 3.3346"	10.5:1	103–108
5E-FE	91 ci	2.9134" × 3.4252"	9.4:1	93
SkyActiv-G 1.5	91 ci	2.9331" × 3.378"	—	106

Factory cars with a Toyota 91ci

• Toyota Tercel: 1995, 93 hp; 1996, 93 hp; 1997, 93 hp; 1998, 93 hp
• Toyota Echo: 2000, 108 hp; 2001, 108 hp; 2002, 108 hp; 2003, 108 hp; 2004, 108 hp; 2005, 108 hp
• Scion xB: 2004, 108 hp; 2005, 108 hp; 2006, 103 hp
• Toyota Yaris: 2007, 106 hp; 2008, 106 hp; 2009, 106 hp; 2010, 106 hp; 2011, 106 hp; 2012, 106 hp; 2013; 2014, 106 hp; 2015, 106 hp; 2016; 2017; 2018; 2018, 106 hp; 2019; 2020, 106 hp

What varies across the family

Both bore and stroke vary across the family, so these are separate castings rather than variations on one block.

All are undersquare — stroke larger than bore, favouring torque low in the range.

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.

← All Toyota engines