I'm starting to do the research part of my build and have been reading quite a lot of information. Now I'd like to get some input from you guys who more than likely have more knowledge on this than I. Haha. The car is a 99 WS6 with just under 85k on it. Its got a moser 12 bolt with 3.73 gears, Aluminum Driveshaft, Fully built 4l60e with a 3800 vigilante stall. The engine is basically stock except for BBK SSI aluminum intake and 85mm TB, Hooker Headers Slp Y Pipe and Magnaflow cat back. I have a plate nitrous system just don't have it completely set up yet.

The plan was to buy some 243's and have them sent to Advanced Induction for the High Comp Heads and Cam kit. The questions being: Is this a good avenue to take? Will the bottom end hold at 85k miles? What supporting mods may be needed?

And really any overall suggestions you guys may have. Im really hoping to break the 500 mark though I do not know where I stand currently.. Im looking forward to hearing some thoughts from you guys!

 

Mine had 75K when i bought it with the current mods in sig. What size shot are you looking at doing after the HCI build?

 

Nothing more than a 125 or 150 shot. Id like to hit my goal without nitrous but idk how realistic that is

 

So far Im considering going with the P/P 243's from advanced inductions with their full head and cam package. Adding on, LS7 Lifters and trays, LS2 timing chain, Ported LS6 oil pump, Comp gold rockers, a ZO6 MAF and possibly larger injectors depending on suggestions. Any opinions?

 

If you are looking to break 500 rwhp n/a it definitely won't happen with that HCI combo

 

stock rockers will be fine, just do a trunion upgrade. Also, you'll need injectors, 42# should be good n/a. Are you going to think about replacing the fuel pump??

 

Well thats good to know. I'll definitely look into the injectors then. No i hadnt considered it yet... Recommendations as to what to go with? I know someone i talked to had mentioned that I might be pushing it on the stock pump..

 

you should get a better pump.a custom cam mite get you 475 rwhp .

 

Im hoping to be in that range! Any suggestions on what brand pump though?

 

Id go any 42# injectors since youll be running a wet kit you wont need the added fuel through the injectors. a racetronix pump/hotwire kit will be good.

 

I'll definitely add those two things to the parts list then. It all adds up quick! haha. Cant wait to get the build under way though!