[Petah78]

I know all about the advantage of the Ks. I have owned a FA5 (along with a long list of Hondas) so i am well versed of their potential. I love high revving Honda engines. But if all you are doing is a swap in stock K20 or K24, i am not sure if it make sense as it's quite expensive to get minimal gains. But once you start modding the K, the power and reliability gain are tremendous. I guess it depends on how far you are willing to take your build.

It's a dream of mine to K swap my 86. I do love the chassis but I will wait for the verdict of Gen 2 before making any final decisions. Have to crunch some serious numbers first and figure out insurance options. Not sure how well they will take to a Honda engine swap, if they will even insure the car afterwards.

Originally Posted by Irace86.2.0

It isn't cheap, but it isn't all bad. For just doing a straight swap, apples to apples, someone would need a K24A2 engine and their kit and misc parts. A used FA20 engine goes from $2500 minimum, but averages around $3500-4500 from what I have seen on eBay and places. If someone sold their stock engine then they could have some cash to get the swap kit. Even if the rest cost $5k, they have an extra 400cc motor with the potential to add boost to 450whp, which is 100hp more than the stock FA20, and if the engine explodes then a new K24 engine is $750 and not another $4000. Moreover, the platform is much easier to build for NA or boosted power. Piston and rods and basic builds can net 700+whp. Headwork is far easier and probably cheaper on the K24, so apples to apples comparisons, there is something to gain, but it will take money beyond the swap to reap most of the benefits. If all someone did was add the RSX oil pump, installed the VTC gear and headers and E85 then they would be into some decent NA horsepower and have a more reliable engine to take to the track, IMO. This is almost like adding a CARB kit FI boost levels to the FA20, but with 150lbs less weight. Here they show similar mods as I just mentioned hitting around 250whp.

https://www.k20a.org/threads/06-k24a.../#post-2831938