Table of Contents
What is K swap?
More specific talking, behind the “Kswap” meaning, is the engine conversion of the Honda K20A2 (Europe) or K20A (Japan) found on the Honda Type-r models from 2002 till 2007 (US VERSION are also considered but comes down on engine output) .This engine conversion can be used into older Honda chassis (88 ef, 95 eg, 99 ek.
Which K series has VTEC?
Honda K20A
Two versions of the Honda i-VTEC system can be found on a K-series engine, and both versions can come with variable timing control (VTC) on the intake cam….K20A.
Honda K20A | |
---|---|
Piston stroke | 86 mm (3.386 in) |
Head material | NSH 14 |
Valvetrain | DOHC with i-VTEC on some models |
Compression ratio | See left for specific application. |
What ECU can I use for K swap?

RSX auto ECUs can run $50 and less. Hondata K-Pro is more expensive than KTuner, but if you have to have Hondata, use the 01-04 RSX auto ECU and save some cash. You’ll need an RSX or Civic Si engine harness to go with this ECU. The AEM EMS Series 2 is another option.
What is the best K series engine?
The K24A2 is my personal favorite K-Series engine of the bunch. The K24A2 is a high displacement torque monster of an engine. With simple bolt ons an E85, these engines will make over 240HP Naturally aspirated. The biggest downsides are the limited VTC gear and balance shaft oil pump.
What is the best K-Series engine?
How much does it cost to K swap an Integra?
$5,000-$9,000
Still, it’s not cheap and the whole shebang can cost anywhere from $5,000-$9,000, depending on the engine and parts. It’s worth it, though, because once you see how easy is it to make obscene amounts of power you’ll be happy you went the K-swap route.

How much power can a stock K24A2 make?
The highest rev limit a reflash for stock k24a2 internals is 7700 which is the sergebo reflash. Hondata sets the limit at 7600, and even with moderate airflow mods I feel the power output flatline after about 7200.
Can you turbo a K24A?
Since the K24 can handle forced induction well, it’ll come as no surprise that many owners opt to go down the turbocharged route with their build. If you intend to go beyond 400 hp, then a turbo kit will likely provide the best option for the money.