1989 GMC Seirra 1500 Exhaust manifolds

[1988monty]

Hello all,

I am new to this forum and this is my first post. It may very well be in the wrong location but I didn't see a parts wanted section............

I am looking for a set of good exhaust manifolds for my 1989 GMC Seirra 1500 with a 305 cid in it. They do not have the EGR tubes going to them.

Any help or direction on where I could find a good set (used) for cheap would be greatly appreciated.

[75K30]

Welcome to the site:
That sounds like a dealer item unfortunately, but you may have some luck with local exhaust shop.
I just looked on evil bay, and found several sets for around $20.00 (U.S.), since they are cast iron, shipping might be expensive, but at least they are cheap.

[1988monty]

Originally Posted by 75K30

Welcome to the site:
That sounds like a dealer item unfortunately, but you may have some luck with local exhaust shop.
I just looked on evil bay, and found several sets for around $20.00 (U.S.), since they are cast iron, shipping might be expensive, but at least they are cheap.

Yes I have seen them on e-bay and wondered how they are so cheap, maybe the quality is also?
Junkyard wasnt $100 a side here ! and that is used !

I though maybe some member on here would have a set laying around they wanted to get rid of for cheap. Maybe someone that put headers on.

[75K30]

pretty sure that they are cheap because there is not much demand for them. Other than you, how many people are actually looking for a factory exhaust manifold? Have never heard of anyone saying "man I really need a set of those factory manifolds", usually most upgrade to headers.
Not convinced that the quality of those online are poor, and sure those are take offs. Who is actually going to make a replica?
Is a header upgrade not a good idea? Did you break an existing one?

[436'd skylark]

yeah I was wondering why you would want/need a set?

[1988monty]

Originally Posted by 75K30

pretty sure that they are cheap because there is not much demand for them. Other than you, how many people are actually looking for a factory exhaust manifold? Have never heard of anyone saying "man I really need a set of those factory manifolds", usually most upgrade to headers.
Not convinced that the quality of those online are poor, and sure those are take offs. Who is actually going to make a replica?
Is a header upgrade not a good idea? Did you break an existing one?

When I got the truck it was leaking exhuast from the drivers side where the manifold bolts to the y-pipe, the gasket was toast. When I took it apart the manifolds were so rusted at the flange there is no hope of putting them back on. The 3 studs (holes) that hold the y-pipe on are very rusted and would not take new studs.

This is the link to the part on e-bay. They sure look new, I don;t think they are take-offs. Someone made a replica.
http://cgi.ebay.com/ebaymotors/EXHAU...spagenameZWDVW
That is why I need new ones.
I would prefer to stay stock and not go with a header

[03chevy]

you can save some money and use a wire brush and a brush wheel to clean yours up a little rust will clean up easy

[75K30]

Those do look like a Chineese product, but if you are having trouble finding a factory replacement, I wouldn't hesitate trying that. It looks alright, and as long as it fits, it should last a while.
That has got to be something that local guys are taking off of their trucks, or at least muffler shops have to be removing them when they have customers that are upgrading to headers.

[1988monty]

Originally Posted by 03chevy

you can save some money and use a wire brush and a brush wheel to clean yours up a little rust will clean up easy

It is not a little rust, or yes I would do that. the rust has eroded the metal to the point it is not there, that is why I need new ones.

[AllV84U]

go with headers they are more perfomance then basely any exaust manifold