What is the little pipe attached to the upper intake manifold gasket on the Series III engines? I know the Series II didn't have it.

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Got any pics for us guys without the series III. Im curious.

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Scotty Hall
Bartlesville, OK
2001 Pontiac Grand Prix GTP
It whines a lot, but I like it.

The only limitation you will ever face in life is yourself!

I don't unfortunately. I found it when I put the HV3 in. If you look at a genII gasket, there are 2 squares between the 1-2, 3-4. My original gasket had forks stick up off of that and held a small piece of pipe about 1/2" diam, 8"long and j shapped. The short side of the J stuck down towards the opening by the #2 opening. The long end ran parallel to the engine and stopped about at the right edge of the #4 opening. I couldn't see a need for it so when I put in the HV3 and it didn't fit, I cut it off. Everything seems fine but i've always wondered.

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I dont know the series III, but....on the series II(L67)...those 2 square ports were for the pcv...

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2001 GTP street car- GT45 turbo,Stage 4 Intense turbo cam,FMIC,150 wet, double roller timing chain, Diamond forged coated pistons 8:0:1, Diamond piston rings, cryoed L32 connecting rods, Cryoed crank, Clevite77 main bearings, Clevite77 cam bearings, Clevite77 L32 rod bearings, ARP Everything, Intense/meizere true billet Flexplate, Custom UIM, Intense oil pressure kit, Cometic 4 layer head gaskets, OE-R lifters, Cryoed L67 block, ATI turbo dampner, MUCH MORE, 6 more to choose from ASE Certified