DANSBIRD

iTrader: (2)

I'm trying to acquire the parts I need for a 6.2L swap and while the TB will be larger (92mm), I'm looking at possibly putting on an 85mm MAF. Someone told me the stock LS1 MAF is 85mm, but I thought it was smaller.

dr_whigham

iTrader: (49)

Pretty sure the ID is 75... I think.

dr_whigham

iTrader: (49)

INTAKE MANIFOLD;
Head Deck Flatness: 0.5mm / 0.02" @ gasket mating surface
LS1 MAF ID = 75mm
LS1 Throttle Body ID = 75mm
LS6 MAF ID = 80mm
LS6 Throttle Body ID = 80mm

DANSBIRD

iTrader: (2)

Great... looks like I'll have to buy one.

is $150 for a used 85mm MAF a decent price or should I just spring for a new one?

R6cowboy

iTrader: (3)

Stock LS1 MAF is 75mm.
Stock LS6 MAF is 85mm.

It depends on the condition of the used 85mm. If it's slightly used and in mint condition $150 may not be too bad, but I think that's a high price for most.

dr_whigham

iTrader: (49)

You can get them for 40 bucks on eBay all day long

DANSBIRD

iTrader: (2)

I love you.

slammedc5

iTrader: (1)

Or you can grab any 2001 to 2004 MAF they are 85mm from a vette,like my stock one. 02 to 04 zo6s have 85mm MAF with no screens. I also removed my screen before my tune

thunderstruck507

iTrader: (18)

My 99 silverado has the 85mm MAF as well. Do not spend more than $50 shipped for one.

It will require a tune as previously posted.

DANSBIRD

iTrader: (2)

It's going on a 6.2L that'll have a cam. It'll be tuned anyway.

DANSBIRD

iTrader: (2)

Wait... so a 99 Silverado came w/ an 85mm MAF, but an 02 TA didn't?

dr_whigham

iTrader: (49)

Nope. ALL FBodies got the one on the left

DANSBIRD

iTrader: (2)

The one on the left looks bigger than the one on the right. :o

autogeek23

iTrader: (13)

looks to be an illision because of the color difference

dr_whigham

iTrader: (49)

It's not, lol

DANSBIRD

iTrader: (2)

Dumb question... I'll be running an LS3 intake... a 4-bolt 92mm cable driven TB... is there a specific 85mm MAF I'll need or should a 3 or 4 bolt work either way?

dr_whigham

iTrader: (49)

Here's ALL the 85mm MAF part #'s

25341604, 15904068, 25318411, 25168491, SU1287, 5S8050

raysadude

iTrader: (11)

if you're going to use the maf on ls3 why don't just use the ls3 MAF?

DANSBIRD

iTrader: (2)

That's not a bad idea.

I wonder how much one will run me.

DANSBIRD

iTrader: (2)

The problem I'm going to run into is that I'll be running my SCC airbox which has a very narrow opening. I'm guessing it's around 78mm, so there will be a huge bottleneck... which is why the size of the MAF wouldn't be THAT important, but I may just get an LS3 MAF and be done w/ it.