YouKnowWhoIBee
my avatar is better.
Listen ... the k20a3 doesnt even have true vtec. Do you know what vtec is? Do you know what it does? It just isnt a sound. It is cam lobes and profiling. The k20a and k20a2 have true vtec. Each side of the head has 3 cam lobes with the middle lobe being the high lift and duration lobe. And on the k20a3 the cams are different and so is vtec.In that the cams only have 2 lobes not 3 and each lobe sits directly ober and intake valve and each valve has its own independent rocker arm. Reasearch my friend, Try the search button or something before you make useless posts. And to sum up ... Your k20a3 is gonna be a useless swap for you and to much if a hassle and not enough power for the money like i said the best all motor choice would be the beast but not everyone has that type of money. It takes alot to choose a motor to swap. You can't just go by The horsepower and torque specs. You have to decide our application, usage and what you in the end want to get from the swap.