GMC Manifolds Question 305/350?? Diffrent Style Same thing?

[BladeX]

Im mad n00b but here is my question.


Ok this is the one that the dorman website says i need. But it dosnt look anything like mine. And wtf is that pipe thats coming off the top right?
http://www.rockauto.com/ref/RB/Detail.html?5013760.jpg

This is what mine looks like.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2453840970

Does anyone know if they are the same thing?

[Russell]

GMC and Chevy manifolds are the same

That looks like some sort of heat riser coming off that other one you showed.... Looks like it is the same underneith of the heat riser.

[Old Chevy Lover]

Looks to me like the one in the Ebay auction is for the drivers side, the one on the Dorman website is for the passengers side, which is the side that has the heat riser that hooks up to the factory air cleaner. You can get a passenger side manifold without the heat riser if that's what your looking for. Here's the link on the Dorman website.
http://www.rockauto.com/ref/ATP/Detail.html?101099.gif

[BladeX]

mine looks like the one on the ebay auction do you think the one at rock auto would work for me?

[blink32]

Originally posted by BladeX
mine looks like the one on the ebay auction do you think the one at rock auto would work for me?

To me that question doesn't make sense. It reads like your asking if the Rock Auto passenger side manifold will fit in place of the drivers side manifold. Just decide/specify which side you need, Drivers or Passenger. In any case the Ebay auction one *should* fit in place of your drivers side mani, and both the other two linked to With and Without the heat riser *should* fit in place of your passenger side manifold.

[Destructo]

What year is your truck/engine? Earlier models will have the ones listed on ebay. If you have a later model truck then you may have the ones the other website says you need. Those are two different style manifolds and they probably won't bolt up to your exhaust if you switch them. Most likely somebody has swapped the engine and used the new manifolds or they cracked a manifold and put the older model style manifolds on it.

And i'm not sure but I think maybe 305s had the kind that go over the plugs and 350s had the kind that go under the plugs?

[BladeX]

Ok i bought 2 manifolds. probly got ripped off no big deal.

Left
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2453840431
Right
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2454867183

They look diffrent and the place that i ordered them from said they wont work for my truck. But they look exactly like the ones i got on! bah!

Can anyone clairfy it for me?

Btw this is my manifold.
http://home.earthlink.net/~danz0r/engine3.jpg

[phantom dually]

Man I would have got you a set of 87 v8 manifolds for like $20 plus shipping.

[BladeX]

Mines a 86 tho.

[phantom dually]

they would still work.

[79Silv4x4]

What you got will work but ya shoulda done some research here first--would have saved you some $$$$

[BladeX]

well i wanted new ones not rusty ass ones. i asked around only 2 people said they had some most of the air injection were stripped or non existant.

[Destructo]

That style usually came on earlier engines I think. So your may not be factory, thats probably why they said they won't work. But if they look like yours then they will work just fine.

[greenhorn male]

BladeX,
The last 2 pictures of the ebay manifolds are exactly like mine.
I have a 1987 Siverado with a 305 fuel injected, FWIW.

[greenhorn male]

Originally posted by phantom dually
Man I would have got you a set of 87 v8 manifolds for like $20 plus shipping.

Are these manifolds in good shape. Could you post pictures. How much is shipping to 94565.

[phantom dually]

They are in good shape but the air TUBES HAVE BEEN REMOVED. I will get some pics posted.