ATAK, Inc.

iTrader: (2)

Found a Corvette intake, non-EGR, part #12556333, checked everywhere and can't find any info. Is this a LS1 or a LS6 intake? Any help would be greatly appreciated.
ATAK

300bhp/ton

what year as it couold be either. In one of the stickies I think there is a picture of each type so you should be able to make a visual ID.

VA2001SS

Corvette LS1 97-00.

777

iTrader: (21)

If it's non-egr and is not made by slp it is more than likely an ls6 intake. GMpartsdirect is not showing that as being an actual part number. There are a lot of different part numbers so the only way to be for sure is to get a pic of the underside.
Here is a pic of the difference: LS1 on left LS6 on right

300bhp/ton

I might be wrong, but I remeber reading somewhere that the Vettes didn't have EGR.

demonspeed

iTrader: (7)

That is correct. The easiest way to tell is by seeing if it has the hump on the underside. Also the runners are pretty much noticably larger (taller) on the outside.

And I think by "made by SLP" that 777 is refering to just means the EGR provisional fitting they tap into it. The intake itself isn't actually made by SLP - modified is more like it.

MagikMan

iTrader: (2)

The corvette ls1 intakes don't have egr, the only way to tell is the underside, or if you know the part number to check with someone that can tell from that.

VA2001SS

These are the casting numbers on the driver side of the intake manifold easy to see even with the intake on the car.

12560688 98-00 F-body LS1
12556333 97-00 Vette LS1
12561184/2 01+ F-body/Vette LS6