As I stated last night on a post I plan to put around 530 to 600 hp on pump gas around 18 psi. Would the IPP stage 5 longblock be over kill? As you can see on there page it only has metal head gaskets and 1 mm oversized valves over the stage 4 block and its about 1000 dollars more? Are the 1mm oversized valves worth the extra cash? Which Long block would you all recommend?
Follow Ups
Still cant decide which longblock! Help? - RedTTZ91(OK)15:17:27 03/31/08