Whats the difference in the bottom ends? just the compression ratio? I found one locally for a good price and I was considering picking it up and eventually doing a k20head / k24 bottom end in my EK.

Any info is greatly appreciated!

 

the k24a4 does not have oil squirters.

and here is some info complements of team pacman on k20a

K24A4
Found in:
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
Torque: 161 ft·lbf (218 N·m) @ 4500 rpm
Redline: 6500 rpm


K24A2
Found in:
2004-2006 Acura TSX
Displacement: 2354 cc
Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
Compression: 10.5:1
Power: 205 hp (149 kW) @ 6800 rpm
Torque: 166 ft·lbf (225 N·m) @ 4500 rpm
Redline: 7100 rpm

 

I believe the k24a2 crank is slightly different in terms of balancing & counterweights (k24a2 slightly heavier overall). k24a2 rods are beefier, pistons have much more valve relief. K24a4 pistons are not made to run with the a2 head - you will severely limit vtc (to 28-30*), crv (k24a1) pistons allow for much more V to P clearance.

I think oil pumps are different as well..

k24a4 is not bad if you replace pistons, rods, & oil pump