franches

What are the stock I.D.'s for the MAF and the Throttle Body on the various years LS1's?


Thanks

franches

Are stock MAF's 85 mm?

BillC99SS

2001 & 2002 LS6 MAF's are 85mm. LS1 MAF's are 75mm

Bill

Ragtop 99

iTrader: (7)

Is that 85mm at the narrowest point of the MAF where the wires are?

As I recall, the TB's are also 75mm at the blade.

franches

Yes, the MAF was 85mm at it's smallest diameter. The TB seemed smaller than 75mm at it smallest point, I could not get the calibers in there to measure acurrately on the TB though.

Ragtop 99

iTrader: (7)

Go from behind the TB and you get 75 mm I think. That's where the gains from porting come in; opening the whole thing up to atleast the width of the blade.

Pro Stock John

iTrader: (34)

Stock 98-02 F-Body MAF and TB inner diameters are 75mm.

franches

I measured mine (MAF) last night with a set of Starrett Dial Calipers and it's smallest I.D. was 85mm.

franches

That is what I was thinking but I took mine out last night and measured it and it 85 mm. I have a 2002 Camaro. Has anyone else seen this on a 2002?

LS1 JAY

[quote]Originally posted by franches:
<strong>I measured mine (MAF) last night with a set of Starrett Dial Calipers and it's smallest I.D. was 85mm.</strong><hr></blockquote>
Never heard of this, they are 75mm or atleast my buddys '01 is!