'04 4.8L longbed

[farmtruc]

All stock, just a magnaflow muffler, made 230hp / 228tq

We'll get it dyno'd next week and see what the new shorty headers and air box mod makes.

Just an FYI,

later,
allen

[CHEVROLADE]

THAT NICE,THE 08'4.8 MADE 6MORE HP lol

[farmtruc]

I figured someone would want to know eventually lol.
Nothing great but it's nice to see HP growth with mods, but you need a baseline first.

[GasGuzzler]

All stock, just a magnaflow muffler, made 230hp / 228tq

We'll get it dyno'd next week and see what the new shorty headers and air box mod makes.

Just an FYI,

later,
allen

So a 4.8 swap into my Blazer that currently has the stock 209K mile 4.3 is worth 70 horsepower and FOURTEEN FT/LBS OF TORQUE?

[SNEEKY]

nice to kno what my 04 makes.... let us kno what the shorty headers make and your guesstimates on longtubes for it....

[LsxCody]

nice numbers for stock

[SLO TRUCK]

nice to kno what my 04 makes.... let us kno what the shorty headers make and your guesstimates on longtubes for it....

my 4.8 with lt's, 3" exhaust and CAI and tune made 270 oh yeah thats with 87.5 lbs per 22" wheel tire combo. , just put in a 212/216 .520 525 114lsa. I have appointment monday for re-tune and hopefully put it up on the rollers.

[SlvrSierra]

Ever get any After #'s?

[farmtruc]

Ever get any After #'s?

We will soon, he's an employee here, so we need some downtime to get it back on the dyno.

[SlvrSierra]

We will soon, he's an employee here, so we need some downtime to get it back on the dyno.

Cool, look forward to the results. My 05' w/ a Corsa catback, Shaner TB, CAI, and a tune thru the stock convertor dynoed at 225hp/260ft lbs. Just trying to figure out what is up w/ my HP #'s