726.0chevelle

iTrader: (17)

I just got this months Hot Rod mag in today. They have an article they see how much power a stock bottom end 5.3l can make. They twin turbo it a pair of 76mm ebay turbos running 118 octane fuel. However they thought they had a 5.3 but then they realized it was a 4.8 lol. Anyways they made 1203hp on an engine running 26.8 lbs of boost that is sick. The motor had ported heads fast intake and tb and a off the shelf comp xr281hr lol not even a boost cam. It starts on page 76. the name of the article is "Big Bang Theory" I have been trying to find a link but not having any luck

chevyboy.520

iTrader: (6)

See this article this morning . Haven't had time to read it but I can't wait

TIM Z

iTrader: (12)

LSx enginges, BEST DAMN V8s PERIOD!!!!

NOT Ford
NOT Dodge
Def NOT Toyota.


GM FTW!!!!!!!

1200 out of a lil 4.8 how fukin awesome!!!!!!!!

Atomic

iTrader: (42)

Thats just silly

Engine dyno?

Sc00by

Hell yeah!!!!

GM RULES!!!!!

726.0chevelle

iTrader: (17)

yea it was and they never managed to hurt the motor they tried more boost but was having ignition issues over 27lbs

2doorfury

iTrader: (12)

aannd this is on stock bottom end?? with a 4.8?? thats just insane!! see, these engines were made for performance. glad i decided to go down this route with my new project.

sharpshooter

iTrader: (10)

I want to know can the 5.3 and 6.0 handle what the 4.8 can. Is the 4.8 more than we think? Foose04 and a few others are proving this. 4.8's don't cost anything to replace if you hurt one.

Spoolin

iTrader: (8)

I'd like to see the rods in that motor. Good tuning can save the pistons but the rods are the weak link in these motors. I believe it though, there's plenty of guys on here that have pushed stock blocks to over 1000hp. Synergy and Jarrett to name but a couple.

Hurley00

iTrader: (3)

Yes its a good read. The 4.8 made 450hp NA with tea ported heads, com cam and fast intake. There is also a 2500 HP sonnys big block that makes a normal big block look tiny. The v4 is cool too, its a joint build between katech and motus. It's a 160hp motorcycle engine.