409 Exhaust manifolds

[Jayz63]

Hello everyone. Im getting closer to finishing my project and one of the last things is to send off the motor to reassemble. As i was doing some research I found out that the 1965 exhaust manifolds (3855161 & 3855162) I have for the car will not work in a 1963 impala. I also have a set of other manifolds (3788604 & 3767583) I was considering using. The problem I have with the last set i mentioned is that there is no hot air choke tube in the manifold for the carb. I believe what i've read is that I need to be using a 2 1/2" outlet for the 409 425 HP motor. I would prefer to get a set of 63 manifolds (3822925 & 3822926) but I don't want to empty out my bank account to purchase a set. I was debating on selling my 65 set and the other set since I will not be using them. Has anyone used any of the aftermarket chrome headers such as headman header block hugr SR chevy 409 (eBay $256)? Im open to all suggestions and if someone may have a set of 63 manifolds that would be best.

Thank you
Jason

 

[IMBVSUR?]

What are you asking for the 65 manifolds? Pics would be nice.

 

[1958 delivery]

65 manis are hard to come by. You should be able to get enough or very close to pay for the ones you need, the good ones

 

[Jayz63]

Yeah I’ve never seen a set for sale until yesterday on eBay but someone wants $1500 for them.

 

[Jayz63]

Here are the other ones I have looks to be one truck and one 61 409

 

[IMBVSUR?]

They can ask what ever they want. There is a limit though, and some of them you see return again because they cant get what they want. I believe the pair you speak of from Ebay were 2000 originally. You mentioned you were thinking of selling them? Are you selling them?

 

[Jayz63]

yes I will be selling them

 

[63impalass409]

I messed up and sold a set of nos manifolds a few years ago for 800 oohps!!!!!and just had to buy another set for 1200 with shipping from a fellow well know member here for next 65 project that has a 283 now. Like I said oohps

 

[IMBVSUR?]

Was that a few about 2 years ago 63impalass409 on EBaY?. I had seen either an NOS pair or super nice and I hesitated because mine are really nice and I only wanted a spare pair. I thought those were a 1000, I regret not getting those if that was them.

 

[63impalass409]

Yes that was them ,I had set the reserve too low as I figured they would sell for way more then eBay takes their 10% on top of that . Felt like I got a good slap in the face on that deal.

 

[427John]

If the pair you have that has the 583 and 604 are 2.5 truck manifolds which explain the lack of a heat tube then I'm in the market for some of those.

 

[Jayz63]

I know one is a truck manifold and the other cane off of a 61 409.

 

[Jayz63]

has anyone ever used any aftermarket exhaust manifolds on a 63 impala?

 

[Phil Reed]

There isn't any!!!

 

[Jayz63]

What about this set from summit
https://www.summitracing.com/parts/hed-68530/make/chevrolet

Here is another one they offer
https://www.summitracing.com/parts/pte-h8066-1/make/chevrolet

 

[Jayz63]

Another one here
https://www.gearheadworld.com/store...khugger-Plain-Steel-Header-Set-P10704C28.aspx

 

[Don Jacks]

Of the 3 that you referenced,the top one[Headman] would be my choice.The bottom one looks like it might be suited to a 65 car however.

 

[Jayz63]

Yeah I just contacted the bottom company because they mention they will fit an impala but I want to make sure before I order.

 

[1958 delivery]

Why shorties? No real performance increase. Aren't there any good full length available? I used those Sanderson shorties on my 58 348 delivery, leaked like a bxtch.

 

[1958 delivery]

I would buy the GM high perf full length mani's