Quote Originally Posted by silviadriftr
This is true if you don't want to make over 240whp. And pushing stock, high mileage ka's to between 220-240whp you will replace 20ka's very easily. As for the price of parts. I haven't seen a descent pair of rods offered for the same price range as the eagle h or I beams that are offered for the sr20 motors. The cost of pistons is normally more expensive as well. And with the factory sleeved block I can make 398 without swapping the head gasket on a fully stock internal motor. Similar flow characteristics are true to a point, but the ka can't take advantage of the flow without a rod peeking it's head out of the side of the block to say . point is I am sure You can do the same power with either motor when fully built, but for someone who wants to add bolton parts without cracking the motor open and get up to 400whp the sr is way cheaper. Just my
You can make 350-375rwhp on a stock KA without cracking it open I've personally seen two cars do it. Its called, AEM EMS, T04E, fuel and tuning.

CP pistons makes a very good set of pistons for both the KA24E and KA24DE. Also, crower makes a very good set of rods which have seen 638rwhp on a KA so if thats not strong I don't know what is? Yes you do need a very good tune on the KA but the power is possible. Both motors have their strengths and weaknesses but the KA's tourqe with boost is just phenomenal.

Drive a 350rwhp KA-T and 350rwhp SR and you will be surprised by the outcome.