NemeSS

iTrader: (127)

Alot of these prices for parts are realistic for new parts.
But the value of the ls is its ability to use used parts like cams and heads and not care.
Sometimes gotta buy new. But can get away with alot of used stuff sometimes.

badazz81z28

iTrader: (6)

These are new price estimates. Some things I wouldnt mind used either.

Some of the things like the CAM, pushrods, carb intake, ignitions I would use too. The cams I found on here were not much cheaper than new, so I went new. Seems to be the case here for stuff I'm looking for (IE used FAST 92 intake).

Some things like lifters, headers I would avoid

Seems the EFI portion is what is costing me the most money. For what I have paid for the TB, injectors, and FI tank would have bought a carb set-up 5X over.

NemeSS

iTrader: (127)

this is a turbo build what i mentioned. Not naturally aspirated. Will the ls hold and make more hp,psi and rpm on stock heads and internals?
I dont think it, i know it

badazz81z28

iTrader: (6)

I'm sure the SBC could handle it too. No question who has better heads for the $$. But the SBC is not a weak bottom end.

ZONES89RS

iTrader: (25)

It is not the strength in question, it is junkyard pull vs junkyard pull. You don't need anything for a LS, a 5.7 needs things that add up.

A LS with a cam, 7000 rpm with pr and springs.
That is also stock heads and makes rediculous power band.

SBC needs all kinds of support.

Making the LS the budget king. That is all I'm saying. Throw enough money at anything and it will produce. LS just benefits more from aftermarket parts, doesn't need them.

ZONES89RS

iTrader: (25)

For starters, how many SBC have powdered rods? Exactly, we are taking any random SB, not the vortec alone.
The small tiny bolts are also surrounded by deep skirting. Another advantage. As well as ALL of them are 6 bolt, you do not need to hunt a 4 bolt that some A hole is asking more for than a 2 bolt,.
8mm rocker bolts are because of engineering, they do not need a huge rocker stud because of heavy valve train. Let's not forget that you need to machine for screw in studs that won't rip out web you put real springs to hold that thing together on a small block.
Cast is cast, never had issues with old SBC pistons or cranks.
Stock for stock, can you spin 7200 with just a cam, springs and pushrods? No, no, no. The LS is stronger factory for factory, it is with the territory. One was designed in 1955 the other in 1997, then there is the gen IV that has even better rods and reluctor.

RabidStreetRacer

iTrader: (1)

End of discussion here: hotRod did a test on a 5.3 that ended up being a 4.8 junkyard engine. Put better springs, a Fast intake and i believe twin 76mm turbos. The engine had over 50 dyno pulls that made over 1000hp. They maxed out at about 1200hp and thats because the ignition would not keep up. Show me a stock bottom GEN I that can do that. The 4.8 never blew!

Edit: Found the link
http://www.hotrod.com/techarticles/h...g_bang_theory/

ZONES89RS

iTrader: (25)

That is not the argument, it is the price, cost effective stock parts, budget builds.

Fact is a SBC holds boost easier because of 5 bolt per slug vs 4 on a gen III. Gen IV has 6 on some. But with studs and blah blah, the gen III does fine.