Im planning on doing the le2 h/c package and i was wondering what else should be replaced when i do this, such as lifters, timing gears, chain, rockers, headgaskets, etc, aslo my shortblock has 125k on it and i dunno how it would withstand revving to 6500 rpm, another thing is will the stock fuel pump and 22lb hr injectors support enough for this because im also planning running a 50 shot of the juice on some occasions, so does anyone have any imput for me on this? thanks

 

Yep! Going to need NSA rocker arms, guide plates, good set of hardened pushrods, at 125,000 might want to invest in a new set of either GMPP lifter (OEM) or CC OEM replacement Llifters, atleast 30lb injectors if you run nitrous, new 255l fuel pump, atleast a 3000 stall probably bigger, 3.73's or 4.10 gears, and a set MT drag raidals or ET streets. Remember to get the optimal HP from the cam you will have to shift at 6500 or higher. Might want to think about refreshing the bottomend or a 355 or even a 383 stroker. All will be needed to utilize the setup to its full potential. I wanted to use my SA 1.6 promags and Lloyd advised agianst it because of the beehive springs and lift of the cam. Good luck and keep us posted on the progress.
HVY SS

 

With all that power, i dont think the ***** 10 bolt is going to hold up...might want to think about upgrading if your going to be launching hard

 

or just launch lightly for a while.... thats what I am doing.

 

Lloyds doing my heads now, the only thing I've seen that he told me differant was step up to one piece chrome moly pushrods. The non s/a rockers wont work cause of the bee-hives (i think thats what he said). You also need to get a 58mm throttle body and you should be good to go.

 

You dont need a stronger rear end... as long as your not running sub 2.0 60 foots all the time you'll be fine... Tires will break loose before the rear end breaks...
You dont really need a 58mm TB... a 52mm will flow enough cfm's to handle a heads/cam 350 at the 6500rpms you'll be running. anyways your Intake manifold is only a 52mm and you'll need that ported as well if your gonna make full use of a 58mm... Velocity is better than Volume... 58 will open faster with less pedal action making it feel faster with less applied power but it mathmatically it shows that anything larger than a 52mm on a NA 350 for what we rev to isnt worth it.
You'll need the stronger pushrods and lifters would be a really good idea... check your timing chain because it'll probably need replacing too at those high miles and higher revs/power to come..
You will need the 30lbs injectors... your stock fuel pump can handle the heads/cam set up but it'd be a good idea to upgrade soon...
1.6 NSA rockers are must...
You will definately need a tune.. Brian at PCMforless is really low priced and does a good job.. But ideally you'd want a dyno tune.

You'll probably blow your tranny with that heads/cam set up and will definately blow it if u spray.

125k is kinda alot of miles (depending on the care of the engine) to be doing a heads/cam high rev set up..

 

what sites offers good deals on all of these parts, the only i have look at is thunderracing. any options?

 

Click on the supporting vendors index at the top header and start shopping. Watch for sales in the supporting vendor forum also. Take your time and you can save some coin.

 

I agree, you will usually save money by buying your parts from one vendor. Most of those guys know exactly what you need and will be very helpful.

 

im going to be doing this same upgrade in due time. i was looking at thunderracing, they have everything you need for this job, including the Cam swap gasket package. as far as the timing chain would a Coyles double roller be a decent choice? i know you need an electric WP for it, and doent you have to etch out a bit of the gear housing cover?
just a cheaper alternatative for a really good chain. In my opinion