Team Chevelle banner
1 - 15 of 15 Posts

·
Premium Member
Joined
·
15,332 Posts
Discussion Starter · #1 · (Edited)
My tow rig has delveloped what I suspect is the Vortec intake water leak at 120k miles. Anyone got the GM part number for a good replacement? 99 Vortec 454 (7.4L) intake gasket set :)

Thanks in advance. :wacko:
 

·
Premium Member
Joined
·
1,139 Posts
Re: Part number request 99 Suburban

Why not just fix the intake water leak for less than a hundred bucks and go on? My 99 Tahoe had the same issue and it was no biggie at all.

Andy
 

·
Premium Member
Joined
·
1,139 Posts
Re: Part number request 99 Suburban

I guess I wasn't clear? All I want is the part number for the intake gasket set.
LOL, oops my bad :clonk: . I wondered why ya wanted to replace the entire motor just for an intake leak.

Andy
 

·
Premium Member
Joined
·
4,995 Posts
Re: Part number request 99 Suburban

I guess I wasn't clear? All I want is the part number for the intake gasket set.
Jeff, before you dive in (although this is a well documented issue with the dexcool and those damned plastic gaskets) check the nipple for the heater core return on the intake, the hoses are quick connect, and you may have developed a leak there. my 5.7 did and I later determined the whole lower plenum had cracked from a machine misthread. Not cheap, and definately not fun, pulling the compressor off is the worst part of that job.
 

·
Registered
Joined
·
660 Posts
The intake gasket should be #12534412. My 96 454 Suburban was leaking internally at the intake gasket as well. :)
Bingo.......lemme know if you need anymore part numbers.
 

·
Premium Member
Joined
·
5,068 Posts
I suggest you think twice agout the GM replacement.

I just did this job last weekend and I used Felpro's improved gaskets in kit part # MS98000T. Advanced auto had them in stock for ~$50.

Look at my thrad in the Engine forum. It has pics and all.

BTW, the driver's side valve cover has to come off before the intake can come up. so the "kit" comes with one of those as well.
 

·
Registered
Joined
·
152 Posts
I suggest you think twice agout the GM replacement.

I just did this job last weekend and I used Felpro's improved gaskets in kit part # MS98000T. Advanced auto had them in stock for ~$50.

Look at my thrad in the Engine forum. It has pics and all.

BTW, the driver's side valve cover has to come off before the intake can come up. so the "kit" comes with one of those as well.
BB_Mike looks like you did the job on a SB 5.7. JBA has a BB 7.4(454), the valve cover should not have to come off and would have a different Felpro #.
 
1 - 15 of 15 Posts
Top