69 Satellite Exhaust Manifolds

[Boz]

I am needing a Left side Big Block HP Manifold for my 69 and was wondering if all HP Manifolds are the same or if I need to look for a certain year and Body? Thanks

[challenger]

have you just tried ebay to see what they have ?

[Polaradude]

It would depend on ci of the motor.

[Boz]

It's a 440 had a 383 originally but motor was pulled when I bought it and they only left the pass side in the car.

[67 GTX]

what ci is your motor?

[Polaradude]

Boz, Iam kinda confused, you are looking for a drivers side 383 or 440 exh. manifold ?

[Boz]

I thought 383 and 440 used the same manifolds? I have one from the original 383 that was left in the car. I am putting a 440 in it now.

[66sportfury]

i think they are the same. i looked in my parts shed and all the HP manifolds look the same. they all dump out in the same spot. but they all could be 383 or 440? for big blocks i have 383s 400s 440s one 413. but im not sure what manifolds came from wich engines

[Polaradude]

If you have a part # I can give you the other side #

[Boz]

I will try to get the numbers off the Pass side one today. Thanks

[Boz]

2806900 is the numbers one the one I have. Thanks

[Polaradude]

Here are the options for ya.
2806900 exhaust manifold 1967-1969 383 440 HP right

The above is the one you have.

2806974 exhaust manifold 1967 440 HP left
2843953 exhaust manifold 1968-1969 273 318 A-body left
2843992 exhaust manifold 1968-1969 383 440 HP left
Hope this helps.

[Morrigan_Aria]

Originally Posted by Polaradude

Here are the options for ya.
2806900 exhaust manifold 1967-1969 383 440 HP right

The above is the one you have.

2806974 exhaust manifold 1967 440 HP left
2843953 exhaust manifold 1968-1969 273 318 A-body left
2843992 exhaust manifold 1968-1969 383 440 HP left
Hope this helps.

Polara, do you happen to know the flow rates on the HP manifolds?

Going to have serious trouble installing stock max Wedge exhaust manifolds due to motor location (1.5" further back, so this is a real pain and a lot of cutting) in the 67.

Trying to locate the flow rates for the HP maifolds and also for the MW set....so I can decide whihc to use and if I have to carve up my baby.

TM!

[67 GTX]

Originally Posted by Morrigan_Aria

Going to have serious trouble installing stock max Wedge exhaust manifolds due to motor location (1.5" further back, so this is a real pain and a lot of cutting)

how come?

[Morrigan_Aria]

Originally Posted by 67 GTX

how come?

Well, earlier (65 and earlier) B Bodies had the motor 1.5" more forward in the engine compartment than 66 and later cars. By this, I mean, as you face the engine compartment, the engine would be 1.5" closer to you, away from the firewall. Not a problem, I thought, at first, except maybe fan/radiator clearance. I have not verified the placement of the motor in a pre and post 65 myself, but if Schumaker and TTI (whom I spoke with about my exhaust and not the headers) and Accurate Exhaust Products all tell me the same thing, I am pretty sure it's right. After all, this is their living (the last two reproduce MW exhaust systems, among other things).

Well, not even Schumaker in Seattle makes an adapter to do that 1.5" move forward. I asked. I would have to fabricate an add-on plate. Again, non-issue, right? Then, of course, the trans mount would have to be relocated. Getting worse...and then, a new drive line would have to be made. Add this on top of the already semi-custom max wedge exhaust I wanted to run and this portion alone will run me around 2K.

The other alternative? Equally as ugly.

The passenger Max Wedge exhaust manifold makes a tight ram curl, and at the factory 1967 motor location, this will directly impact on....my firewall. Right where it meets my floor pan, right at the passenger's feet. So I would have to cut both my firewall and floorpan and fabricate something to accomodate that manifold, something about 6" and 6". Ouch. And ugly. Right on the floor.

So basically, I have four evils. 1) rearrange everything in the drivetrain 2) cut my car up 3) use other manifolds or 4) use headers. I hate headers for the record.

I spoke with David Hakim (formerly of MP and now of Mancini Racing) and he says to suck it up and buy the TTI headers. Save some cash, save the headache and hassle, increase my HP and my exhaust will be cheaper to have done locally in a Max Wedge-style with the exhaust dumps.

Sigh.