All ur basic Kseries engine specs:

K20A

Bore is 86 mm & Stroke is 86 mm for all of the K20 engines.

* Found in:
o 2007- Honda Civic Type-R (FD2)
+ Displacement: 1998 cc
+ Compression: 11.7:1
+ Power: 225 bhp (225 PS, 165 kW) @ 8000 rpm
+ Torque: 159 ft·lbf (215 N·m) @ 6100 rpm
+ Redline: 8600 rpm
o 2001-2006 Honda Civic Type-R (EP3)
+ Displacement: 1998 cc
+ Compression: 11.5:1
+ Power: 212 bhp (218 PS, 158 kW) @ 8000 rpm
+ Torque: 149 ft·lbf (202 N·m) @ 7000 rpm
+ Redline: 8600 rpm
o 2002-2007 Honda Integra Type-R (DC5)
+ Displacement: 1998 cc
+ Compression: 11.5:1
+ Power: 217 bhp (220 PS, 162 kW) @ 8000 rpm
+ Torque: 152 ft·lbf (206 N·m) @ 7000 rpm
+ Redline: 8800 rpm
+ I-VTEC Engagement: 5600rpm
o 2003-2007 Honda Accord Euro-R
+ Displacement: 1998 cc
+ Compression: 11.5:1
+ Power: 217 bhp (220 PS, 162 kW) @ 8000 rpm
+ Torque: 152 f·lbf (206 N·m) @ 7000 rpm
+ Redline: 8800 rpm

K20A2

* Found in:
o 2002-2004 Acura RSX Type-S and 2002-2005 Honda Civic Type R (EP3, European)
+ Displacement: 1998 cc
+ Compression: 11.0:1
+ Power: 200ps/197hp (147kW) @ 7400rpm
+ Torque: 142ft·lbf (193N·m) @ 6000rpm
+ Redline: 7800pm
+ VTEC Engagement: 5800rpm

K20A3

* Found in:
o2002-2005 Honda Civic Si
+ Displacement: 1998 cc
+ Compression: 9.8:1
+ Power: 160 hp (119 kW)* (119 kW) @ 6500 rpm
+ Torque: 132 lb·ft (179 N·m) @ 5000 rpm
o2002-2006 Acura RSX
+ Displacement: 1998 cc
+ Compression: 9.8:1
+ Power: 155 hp (116 kW)* (115 kW) @ 6500 rpm
+ Torque: 141 lb·ft (191 N·m)* (191 N·m) @ 4000 rpm
+ Redline: 6800 rpm
+ (* Horsepower and torque calculations reflect new SAE J1349 procedures revised August 2004)
* (The intake manifold is often credited with being responsible for the difference in HP between these two variants. The Civic Si being equipped with an aluminium intake manifold, and the RSX Base model equipped with a plastic version).

(The base rsx makes 10 more lbs of torque then the Civic Si due to the fact of the "plastic" intake manifold and it is a dual runner]

K20Z1

* Found in:
o 2005-2006 Acura RSX-S
+ Displacement: 1998 cc
+ Compression: 11.0:1
+ Power: 201 hp (154 kW) @ 7800 rpm (SAE net J1349 Rev 8/04)
+ Torque: 141 ft·lbf (194 N·m) @ 7000 rpm (SAE net J1349 Rev 8/04)
+ Redline: 8100 rpm

K20Z2

* Found in:
o 2006- Acura CSX (Canada)
+ Displacement: 1998 cc
+ Compression: 9.6:1
+ Power: 155 hp (114 kW) @ 6000 rpm (SAE net J1349 Rev 8/04)
+ Torque: 139 ft·lbf (188 N·m) @ 4500 rpm / 188 N·m @ 4200 rpm (Singapore)
+ Redline: 6800 rpm
o 2006- Honda Civic (JDM)
+ Displacement: 1998 cc
+ Compression: 9.6:1
+ Power: 155 hp (114 kW) @ 6000 rpm
+ Torque: 139 ft·lbf (188 N·m) @ 4500 rpm
+ Redline: 6800 rpm
o 2006- Honda Accord Sport(Europe)
+ Displacement: 1998 cc
+ Compression: 9.6:1
+ Power: 155 hp (114 kW) @ 6000 rpm
+ Torque: 139 ft·lbf (188 N·m) @ 4500 rpm
+ Redline: 6800 rpm

K20Z3

This inline-4 cylinder internal combustion engine is found in the US market Honda Civic Si (2006+) & Canadian market Acura CSX Type-S. It has an aluminium block with an aluminium head, and a bore and stroke of 86 mm*86 mm, resulting in a 2.0 Liter displacement. The 2006+ civic si has drive by wire throttle

* Found in:
o 2006+ Honda Civic Si (FG2 - Coupe & FA5 - Sedan), 2007 Acura CSX Type-S
+ Displacement : 1998 cc
+ Compression : 11.0:1
+ Power: 197 bhp (147 kW) @ 7800 rpm (sae NET Rev 8/04)
+ Torque: 139 ft·lbf (189 N·m) @ 6200 rpm (sae NET Rev 8/04)
+ Redline: 8200 rpm

K20Z4

This inline-4 cylinder internal combustion engine is found in the redesigned Honda Civic Type-R (FN2). It has an aluminium block with an aluminium head, and a bore and stroke of 86 mm*86 mm, resulting in a 2.0 Liter displacement.

* Found in:
o 2007 Honda Civic Type-R (FN2) (Europe Market)
+ Displacement : 1998 cc
+ Compression : 11.0:1
+ Power: 198 bhp (201 PS, 148 kW) @ 7800 rpm
+ Torque: 142 ft·lbf (193 N·m) @ 5600 rpm
+ Redline: 8200 rpm
+ 16V DOHC I-VTEC changes from low speed cams to high speed cams at 5,600 RPM

K23A1

* Turbocharged
* Found in:
o 2007/2008 Acura RDX
+ Displacement: 2300 cc (acura.com)
+ Compression: 8.8:1 (acura.com)
+ Power: 240 hp (179 kW) @ 6000 rpm (SAE net)
+ Torque: 260 lb·ft (353 N·m) @ 4500 rpm (SAE net)
+ Redline: 6800 rpm (acura.com)
+ Bore: 86 mm
+ Stroke: 99 mm

K24A1

* Found in:
o 2002-2006 Honda CR-V
+ Displacement: 2354 cc
+ Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
+ Compression: 9.6:1
+ Power: 160 hp (120 kW) @ 6000 rpm
+ Torque: 162ft·lbf (220 N·m) @ 3600 rpm
+ Redline: 6500 rpm

K24A2
the 2006+tsx has drive by wire throttle

* Found in:
o 2004-2008 Acura TSX
+ Displacement: 2354 cc
+ Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
+ Compression: 10.5:1
+ Power: 200 hp (147 kW) @ 6800 rpm (2004-2005)
+ Power: 205 hp (150 kW) @ 6800 rpm (2006-2007) *SAE Net Rev 8/04
+ Torque: 166 ft·lbf (225 N·m) @ 4500 rpm (2004-2005)
+ Torque: 164 ft·lbf (222 N·m) @ 4500 rpm (2006-2007)*SAE Net Rev 8/04
+ VTEC Engagement: 6000 RPM
+ Redline: 7100 rpm

K24A3

* Found in:
o 2003-2007 Honda Accord (Europe and Japan) and 2003-2007 Honda Accord Euro CL9 (Australia)
+ Displacement: 2354 cc
+ Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
+ Compression: 10.5:1
+ Power: 189 hp (140 kW) @ 6800 rpm
+ Torque: 164.5 ft·lbf (223 N·m) @ 4500 rpm
+ Redline: 7400 rpm
+ VTEC Engagement: 6000rpm

K24A4

* Found in:
o 2003-2005 Honda Accord, 2003-2006 Honda Element
+ Displacement: 2354 cc
+ Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
+ Compression: 9.7:1
+ Power: 160 hp (119 kW) @ 5500 rpm (166 hp in 2007/2008)
+ Torque: 161 ft·lbf (218 N·m) @ 4500 rpm (@4000 rpm in 2007/2008)
+ Redline: 6500 rpm

K24A8

* Found in:
o 2006-2007 Honda Accord
+ Displacement: 2354 cc
+ Bore and Stroke: 87 mm x 99 mm
+ Compression: 9.7:1
+ Power: 166 hp (124 kW) @ 6000 rpm
+ Torque: 160 lb·ft (217 N·m) @ 4000 rpm
+ Redline: 6500 rpm
o 2007-2008 Honda Element
+ Displacement: 2354 cc
+ Bore and Stroke: 87 mm x 99 mm
+ Compression: 9.7:1
+ Power: 166 hp @ 5800 rpm
+ Torque: 161 lb·ft (218 N·m) @ 4000 rpm
+ Redline: 6500 rpm

K24Z1

* Found in:
o 2007-2008 Honda CR-V
+ Displacement: 2354 cc
+ Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
+ Compression: 9.7:1
+ Power: 166 hp @ 5800 rpm
+ Torque: 161 ft·lbf @ 4200 rpm
+ Redline: 6500 rpm

K24Z2

* Found in:
o 2008 Honda Accord LX/LX-P trim models
+ Displacement: 2354 cc
+ Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
+ Compression: 10.5:1
+ Power: 177 @ 6500 rpm
+ Torque: 161 ft·lbf @ 4300 rpm
+ Redline: 6800 rpm

K24Z3

* Found in:
o 2008 Honda Accord EX/EX-L trim models
+ Displacement: 2354 cc
+ Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
+ Compression: 10.5:1
+ Power: 190 @ 7000 rpm
+ Torque: 162 ft·lbf @ 4400 rpm
+ Redline: 7100 rpm