Justhereforinfo

iTrader: (2)

I just picked up a bunch of parts and I need to I'd this maf. I purchased it as an ls6 maf. It appears to be smaller in diameter than my truck maf, but I haven't pulled the truck maf to measure yet. The new maf has an I.D. of 85mm

Will this maf work with 28# injectors?

The part number search returns no results...

Justhereforinfo

iTrader: (2)

Another pic

Justhereforinfo

iTrader: (2)

I'm trying to build an LS6. I have an ls1 rebuilt shortblock. Ls6 intake, tb, this maf, 28# injectors, 243 heads, zo6 (ls6) cam. I plan to drop this into a short bed reg cab 2003 silverado.

Will the fuel rail from the truck intake work on the ls6?

Is that a decent cam choice for a street truck?

96capricemgr

iTrader: (1)

The injectors and MAF don't have to work together, they just have to each be programmed for in the pcm. I know on some other older harder to tune applications MAFs and injectors were used in conjunction to manipulate fueling but on GM V8s the tuning software is so readily available that we don't have to resort to halfassed manipulation.

If the truck had a working MAF why would you even consider swapping it?

The LS6 cam will likely give up a little down low for decent gains up top vs. the typical 5.3l truck cam, but the extra almost half a liter and better heads will likely make up for it.
http://www.carcraft.com/techarticles...n/viewall.html


Really though I think you would have been better served trying to put together a nice engine for your application rather than chasing the LS6 angle.

Justhereforinfo

iTrader: (2)

Ok, so the mafs don't have pegging issues. So as long as it's a GM maf, get the one with the best id for my application and get it tuned. Thanks.

Now as for the link about the cams.... I don't know what LS6 cam they used in that test, but the specs they listed aren't close to the ls6 cam I have. Besides of course the difference in displacement as you mentioned. My ls6 cam is part # 12565308. 550/550 lift, 204/218 117.5lsa. They tested a 479/467 196/207 116. They also have the ls6 displacement listed as a 6.0.

Am I reading that wrong?

RonSSNova

iTrader: (3)

That is the earlier pre 2001 MAF. It is smaller.

different connector as well.

Ron

Justhereforinfo

iTrader: (2)

Would you mind telling me how you found this info? It was sold to me as an ls6 ws6 maf. I'm learning now, that my truck maf would have done the job just fine, as long as I get a tune.

96capricemgr

iTrader: (1)

You have to get a tune period even if you tried to use the LS6 cam/injectors/MAF/pcm all together then you would still have speedo issues and likely some other anomalies from being in the wrong platform vehicle for the programming.

I googled LS6 WS6 and it appears to be a common line of bullshit spread by stupid people and crooks, GM never sold one. So did you buy parts from a stupid person or a dishonest one?

Justhereforinfo

iTrader: (2)

Neither. The 2001-2002 WS6 came with an LS6 intake manifold on top of an LS1 longblock.

I'm really just looking for a lead on this maf....

96capricemgr

iTrader: (1)

Just use the truck MAF.

I think the earlier LS1 MAFs were basically interchangabe with the older LT1 MAFs, maybe that is what you have, look for some google images and compare.

Justhereforinfo

iTrader: (2)

Yea, I've decided to stick with the stock truck intake, tb, and maf. I'm going to sell the ls6 intake tb maf and buy a converter. It'll be easy to install the converter while the engine is out. If I don't like the truck intake I can always upgrade that later.

So now I'm even more curious as to which maf this is, because I can't sell something when I don't know what it is...

RonSSNova

iTrader: (3)

Oops, sorry didn't check back in here.
When I put a fast intake on my C5, I went to the larger 2001 MAF. The stock 2000 MAF looks just like your photo.

Typically, a real LS6 maf has no screen either.

Your truck maf will be the better choice.

BTW, the tune in the ECM needs to match the maf used.

Ron