Also the K series frankenstein combinations such as the K20A2 head or K20 type r head combined with a K24 bottom end provide 200+ hp and torque with very little if any modifications but the question is would this be cheaper? The K series are relatively new compared to the B and H series motors so therefore the performance upgrades are obviously more expensive since it's new and wanted technology. Would building and tuning a older motor to the K series numbers render less expensive? Help me out people!