I know that k20 head with a k24 block will give you more power. but which one should i get??

K24A4
Found in:
2003-2005 Honda Accord, 2003-2006 Honda Element
Displacement: 2,354 cc (143.6 cu in)
Bore and Stroke: 87 mm x 99 mm (3.43 x 3.90 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 rpmin 2007/2008)
Redline: 6800 rpm

can i use a K24A2???????
K24A2
Found in:
2004-2008 Acura TSX
Displacement: 2,354 cc (143.6 cu in)
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

or should i just go with
[edit] K20Z1
Found in:
2005-2006 Acura RSX-S
Displacement: 1,998 cc (121.9 cu in)
Compression: 11.0:1
Power: 210 hp (154 kW) @ 7800 rpm (SAE net J1349 Rev 8/04)
Torque: 143 ft·lbf (194 N·m) @ 7000 rpm (SAE net J1349 Rev 8/04)
Redline: 8500 rpm
i-VTEC Engagement Window:5800 rpm

[edit] K20A3
Found In
2002-2005 Honda Civic Si
2002-2004 Acura RSX
Displacement: 1,998 cc (121.9 cu in)
Compression: 9.8:1
Power: 160(120 kW) @ 6500 rpm
Torque: 142 lb·ft (193 N·m)* (191 N·m) @ 4000 rpm
Redline: 6800 rpm
(Horsepower and torque calculations reflect new SAE J1349 procedures revised August 2004)


thanks guys