SleekSilverado

One question.. whats a T/A girdle ??

RED2K

As far as breaking it in I never have {besides a cam} On our dirt track motors we have also tuned them and then turned them 8200 all night. About the only break in we do like i said is the cam. Now transmissions are a different story in my book. I have always broke those in over time. Just my $.02

Hit Man X

T/A girdle is a brand of axle girdles.

They hold about 1-1.5 qts more gear oil, have drain plugs, and mainly they preload the main caps of the carrier.

They work nice and look very cool. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Hit Man X

A race motor isn't designed to last that long.

If you need some durability for a daily driver, please don't beat on it when first built. Roller cams don't need to be broken in like the flat tappet as I have read. Read a few service/repair manuals...they suggest a break in time. Trannies I give about 250 miles, gears need heat cycles, converters about 250, and fresh motor about 2500.

Either way, do what you want with your motor and ride as it is yours.

BTW, my 4L60E build up is posted...

Flem

I'll be able to give everybody aread on what you get from a cam and head swap with the Radix s/c. I'm supposed to drop my truck off on monday.(normally I do my own work, just no time lately, s/c's been sitting for weeks.

here's the line up for me-----
02 5.3L 4wd suburban 13K
Radix I/C supercharger
LS-6 cylinder heads (cleaned up bowls)
LS-6 camshaft ADV. +4 degrees
corsa S/S cat back (mufflers from 6.0L application

I'm going to do headers of some either ASM or TOG but I haven't ordered anything yet.

With the stock internals the pistons are the weak link with a S/C the rods are fine.
RPM is what fails rods,cranks and bolts.

my truck put 213 hp(3rd gear pull)(219 in second) HP to the wheels stone stock on monday. I'll be doing dyno time after the install my goal is 400+ at the wheels and 450+ torque.

hodgeee

HitmanX: Great info.

I did some research and saw that it is a nodular cast iron crank. Same design as used in the corvette. GM rated to handle 650hp and torque, and the same one used in there 615hp concept Z28 mustang eater. The rods are powdered steel formed, and precision cracked mains. Stock, GM uses Clevite oil groove bearings. Quite surprizing a stout build up. A lot of the parts are comparable to what they use in the DOHC 4.6L Ford has, that makes 395hp and torque in the stock 2003 Cobra. I cannot find any info on the rings used or the pistons. If they are cast iron forged or what, So I am assuming that they are the weakest link. Even so, When I did my mustang, my motor was not this stout, and I ran 11lb system on that for over 60,000 miles, with 450 crank horsepower. I am only concerned on this bottom end due to the truck weighing about 800lbs more than my mustang. I guess only time will tell for those guys running the supercharger. Now I talked to Lingenfelter tech, and magnacharger tech about the supercharger system. They claim, and I say claim, cause we all know that sales are more important to them, that they have over 60,000 miles of hard use (ten full throttle runs a day) on a 5.3L extracab Silverado. It has the 7lb Magnacharger, magnaflow exhaust, and a k&n drop in filter. They state that they are getting 386hp at the rear tires, and they run that sucker hard everyday. They of course stated that the transmission had to be performance built to handle the power, and that they are using the stock rear end with just a girdle. If this is true then I am not too worried, and then I will not have to pull my motor out of the vehicle to get me to the power level I want. The only thing that still scares me is that I have read reviews of older corvettes and what not, that Lingenfilter did, that melted sparkplug wires or fried motors. The good part about the charger is that for $350, Magnacharger will cover all repair costs to the motor, if it recieves any damage within 36,000 miles or 3 years. This is the only company that I have ever seen that offered warrenty on the motor for their product. I garuntee no one does this except for Toyota Racing Development, and that is a factory manufacturer, and what car maker doesn't warrenty their turbos or superchargers?

I am looking for corvette performance, without the corvette price, puiny interior or lack of storage space. Plus a custom truck just stands out, and seems to get more eyes than a corvette does. Everyone loves a sleeper, well at least I do!

I know that there is tons of potential for the vehicle, but like I said I am only looking for a specific amount, that I can live with for about 5 years.

Thanks everyone for the info.

Hit Man X

Are we talking RWHP or NET or GROSS? From what I remember...

Off the Flywheel is GROSS
Off the Trans if NET
RWHP is Rear Wheel Horsepower

500 gross is probably 350-375rwhp
475-500 net is about 400rwhp.

Not trying to be a dick, I just need to know what sort of power you are talking about. Now that we have that cleared up...

A 5.3 with heads/good cam/full exhaust should make about 350-375rwhp (425-450 net). Adding boost that will work. For how long no one knows. Parish8 runs a stock internals 6.0 with boost, but stock heads/cam.

No sense on O-ringing the block unless you are running lots of boost. 10lbs is mild. I am unsure if you can O-ring a Gen III block anyway.

Don't forget a built trans will sap close to 25% power also. The 8.5" axle isn't too strong either. It will need an Eaton posi at least. If you run slicks you may consider a 10.5" one.

You are talking close to $10K for all this. When you do one thing, many others will begin to break...just be sure you have the cash on hand and be ready.