98Z28MASS

iTrader: (6)

Hi, anyone happen to know what the part numbers are for the OEM gaskets for the intake manifold and the throttle body? Im going to be doing an LS6 inatke swap on my 98z28 and want to change all the gaskets while im at it. I have the coolant lines, coolant plugs, and the 8 rubber gaskets that come on the SLP LS6 inatek manifold, just need the part numbers for the rest of the gaskets. Thanks in advance!

badpewter-z

iTrader: (4)

p/n is 12533587 for the intake set (does not include TB gasket)they list for 76.30 and they are in stock

ill have to look up the TB seal tommorow for ya

badpewter-z

iTrader: (4)

TB seal - 12552542 lists for 12.06 also in stock

98Z28MASS

iTrader: (6)

wow almost $100 bucks just for the gaskets? Haha can I reuse my factory ones or should I change them just to be on the safe side?

badpewter-z

iTrader: (4)

technically they are re-useable but the intake gaskets from 98 are probbly pretty flat now and may not reseal correctly. the TB one shouldnt be to bad though and swap that over

98Z28MASS

iTrader: (6)

Yea I hear ya, I will probably end up just getting all new gaskets as I dont want to deal with any leaks, just didnt think they were gonna be that expensive. Thanks for the part numbers though!

kokki

If I buy new GM LS6 Intake Manifold, #12573572, is there any gaskets included?

98Z28MASS

iTrader: (6)

I dunno I bought the SLP LS6, which is just a GM LS6 which was purchased from them by SLP and it came with the rubber gaskets that go on the underside of the intake manifold, It also includes the coolant lines and coolant plugs too. The only thing you would need would be the manifold and TB gaskets, which are the part numbers listed above. If you buy an LS6 straight from GM you wont get the coolant lines or plugs, nor athe intake manifold gaskets or TB gaskets. I got the SLP LS6 with free shipping from slponline.com for $399 and couldnt be happier as used LS6's go for $350+ and new ones from GM are 450+ without any of the hardware.