HAWKMAN_

anyone try the LS6 CNC heads together w/either the LS1 hot cam, or the ASA? If so, how you like it. Thinkin' about this set-up in my 99 LS1! Any input would be appreciated.

JS

iTrader: (4)

I'd run the ASA cam with those heads or a split pattern like the LG Cams (G5X3)
The runners are big 250CC but can make good power w/the right cam.

SouthFL.02.SS

GMPP CNC LS6 heads + ASA = real good match.

68birdls1

iTrader: (46)

hell yea, every time i see a thread about this subject i always say that i cant wait to try this out! i have heard nothing but good things about this combo

HAWKMAN_

yeah, it sounds like a strong combo on paper, gmpp has predicted right at around 500 horses with this combo, just wonderin' has anyone seen any real world #'s. I want to mod but I also want to keep everything all General. Not really tryin' to acheive to much more than 500 horses for the street. Nowadays 500 horses is almost average on the street up here in the Motor City.
Thnx for the info fellas/gals

68birdls1

iTrader: (46)

you do know that the 500 horses is at the flywheel not the wheels right?!? i bet you would put down somewhere between the 415-445 at the wheels

StickSS

Hi: for your info one of the the car mags I think CHP or Popular Hotrodding did a recent test with these heads, hot cam and an Ls6 Manifold on a new Ls1 crate motor. They got 510 HP at the flywheel on an engine dyno. hope this helps.

2000WS6Vert

Around how much does this combo cost?

44mag

iTrader: (1)

heads are around 2k and cam is is like 360 sdpc carries these parts at the the lowest prices ive seen. one good thing is you dont have to change valvesprings so that will save you money in the long run.

cyphur

iTrader: (10)

this sounds like a pretty sweet setup. let us know if you actually do it, and post up some #'s.

z98

MANY better cams available for minor cost difference.

cyphur

iTrader: (10)

Obviously there are, however this cam is well paired to those heads. It apparently makes a very strong combo. For someone who never wants to worry about changing valvesprings, its a great idea. Some people don't want to swap every year to 18 months.

HAWKMAN_

yeah, I realize that power rating is at the engine, and that's just w/heads+cam I do plan on adding long tubes and ZO6 intake as well, so I assume that should put me somewhere around 550-575 at the engine and right around 500 at the wheels on paper according to the people at GMPP like I said that's pretty much all I'm looking for on the street. Think it'll make for a nice sleeper don't u? Although I have been told the ASA cam is kinda
lopee.

HAWKMAN_

that's exactly what the people told me over at GMPP, perfect setup for the LS1/LS6.

68birdls1

iTrader: (46)

yea and like someone else said, you have to change the springs all the damn time!

HAWKMAN_

Just tryin' to keep it all General, it's a good thing to me to use the parts that were designed for that engine. Not really trying to win NHRA or anything, just tryin' to match up a good reliable, economocal, combo that works well together and acheives good power. Key words, "works well together".

z98

There are also plenty of people making more than 415+ RWHP that don't have to change springs all that much.

And as for being a strong combo, wouldn't something making 30+ more RWHP be an even stronger combo?

Okay, maybe the difference won't be THAT much, but even if you look at the cost of changing springs TWICE (paying someone to do it even) the RWHP is WELL worth it.

mike#9

iTrader: (3)

No offense...but you will not make anywhere near the power you are hoping for. 550-575 at the flywheel is not in the realm of achievalbe numbers for this combo...including the longtubes and intake....and every other bolt on made. You will probably make around 460-485 flywheel...and maybe 400-420 with aftermarket rear...and maybe 10 hp with stock rear to the tires...give or take a "couple." Those heads are decent, and so is the cam...but they are by no means a combo that makes the most power out of any H/C combo........and that is what kind of power that you are expecting.

SouthFL.02.SS

The ASA + CNC Ls6 heads combo is good for 420rwhp.

mike#9

iTrader: (3)

Like I said above.....that is the max I would hope for....but would be keeping my on eye on a lower number.