Just making a list of the "while you're at it" stuff for the triennial belt change. So, I'm gonna remember to pull off the intakes and peek at the back of the intake valves. I think to myself "what if they're dirty?" And then I think ahead, at the speed of light, and IF I am lucky, they will be so dirty I have to pull the heads, and port the heads while they're off the car. Well, I don't know how much improvement is actually possible, but the F355 still is a mass-production car (that is a VIN you guys, not a serial number....) and has mass-produced heads. There is bound to be some hp to be gained, but I am wondering if anyone really has done this? It would be too much to ask flow numbers, I know. Or should I stop hoping that the back of the valves are so dirty that I need to buy new head gaskets.... Thanks in advance, Jay PS The heads would be done by a porting guy who is responsible for countless nataional championships, not me. And the intake and exhaust are no longer stock. PPS Its raining and cold here in case you couldn't tell.
Jay, a) the rain is supposed to stop in the morning. b) take car out for drive c) listen to fabulous sounds d) enjoy drive e) forget that work and enjoy the car! Plugzit is the only one who is supposed to tear apart engines for extra HP!
LOL!!! Plugzit is doing a great job of it too!!! As for the 355 heads?? If you are already there just smooth them out a bit.
I think you will find nothing to be gained. Wait until you see those valves and the ports that lead to them when you pull off the plenums and open the throttle plates and look down the barrells. There is nothing more to smooth out or straighten out. You couldn't have a much quicker or cleaner shot then what you will see. regards, vern
