430-435 CHP now.....What can I do to get 500-510 CHP?

[Vette73]

Originally Posted by XfireZ51

My motor has gone thru an "evolutionary" upgrade, with Phase 1 being ported top end and port matched heads + headers/tune(my own). That put it at
398+rwhp.

Phase 2 was fully ported (GVD) heads + Pete's intake cams + my tune
430something rwhp. Very nice combo. Smooth power delivery

Phase 3 added Pete's exhaust cams + top end port touch up + SW Xpipe w
DynoMax muffs. Again, my tuning both on part throttle driveability and WOT.
This combo did more for torque which just feels great. As much as I liked Phase 2, I would not go back. Idle is a bit rougher, but all is forgotten once in motion.
454rwhp/402rwtq.

Sounds very good....

Right now I am basically happy with the performance of the car but seeing there is much you can do to the LT-5 I'm all ears..

Pete did my plenum and I/Hs and air horn...Picked up nice power...From what I hear if you do the heads and some cam work on the LT-5 much like your phase two, you can get a nice boost in horsepower ....

With that said,the cost ? That's what I have to find out before undertaking anything...I really don't want to get to the point on the Z where I'm spending a lot of money on mods and the value is basically going to stay the same...

I see a lot of modded C5 ZO6s on the corvette forum and that has peaked an interest.....The thing about my Z is that it's clean as hell and runs tops- knock wood......Only thing since owning it that went were, the starter,antenna, and now one of my rear speakers....The rear shocks are leaking and I have a good used set from one of the members that I will install soon..