Differences of 69 and 70 440 HP exhaust manifolds? (I've one of each?)

[b5blue]

  I've a mismatched pair of 440 exhaust manifolds for my 70 Charger. Right side is 2806900 that shows for 67-68-69 and Left side 2951865-1 that shows for 70-71. My question is mostly about the Left 2951865 manifold and how it compares to a 68-69 Left manifold? I want to order a stock exhaust system and know that the Right side would dictate a 69 system as the manifold's exhaust pipe bolt holes are "clocked" to a different orientation than a 70 manifold would be.
  So is anyone familiar enough with both 69 and 70 Left manifolds to know if the exhaust pipe attachment is the same? (So I could just order a 69 440 system.) Thanks for any help!

[BLK 68 R/T]

The only difference that I know of is the additional 1/4 x20 mounting holes for the heat stove on the 70 manifold for the left side. The flange orientation is the same in 69/70 for the left side HP manifold. You should be fine with a 69 year system.

Wes

[b5blue]

Thanks Wes!  That's what I was hoping, I recall reading something to that effect but after an hour searching online could not find the info.

[tan top]

 

The only difference that I know of is the additional 1/4 x20 mounting holes for the heat stove on the 70 manifold for the left side. The flange orientation is the same in 69/70 for the left side HP manifold. You should be fine with a 69 year system.

Wes

I might be wrong  ,  I always thought the 70 hp driver side manifold   & 69 were different , the flange is at a different angle ,   I could be getting confused  with the right side being different & the heat riser set up being at a different orientation      ,  , I await to be corrected  

[b5blue]

I wish I could recall where I read what I'm trying to remember? 

[BLK 68 R/T]

The only difference that I know of is the additional 1/4 x20 mounting holes for the heat stove on the 70 manifold for the left side. The flange orientation is the same in 69/70 for the left side HP manifold. You should be fine with a 69 year system.

Wes

I might be wrong  ,  I always thought the 70 hp driver side manifold   & 69 were different , the flange is at a different angle ,   I could be getting confused  with the right side being different & the heat riser set up being at a different orientation      ,  , I await to be corrected  

I did some searching as well and came up with nothing. I'm still 99.9% sure the left side is the same other than the small heat stove holes. I do know that the flange is orientated differently and the heat riser is different and in a different location on the right side in 68/69 vs 70/71. 67 was clocked different on the left side vs the 68-71 HP manifolds.

Wes

[ws23rt]

The only difference that I know of is the additional 1/4 x20 mounting holes for the heat stove on the 70 manifold for the left side. The flange orientation is the same in 69/70 for the left side HP manifold. You should be fine with a 69 year system.

Wes

I agree I have two left side manifolds   One has date 01-7-68  and is 2843992-1   The other date 12-4-69 and is 2951865-2
The one for 70 (12-4-69) has the stud mounts for the stove pipe.

Both of these have the same angle on the exhaust port and the bolt clocking is the same. (Measured with angle finder +/- .5 degree.)

[b5blue]

Thank you for checking! 

[tan top]

The only difference that I know of is the additional 1/4 x20 mounting holes for the heat stove on the 70 manifold for the left side. The flange orientation is the same in 69/70 for the left side HP manifold. You should be fine with a 69 year system.

Wes

I agree I have two left side manifolds   One has date 01-7-68  and is 2843992-1   The other date 12-4-69 and is 2951865-2
The one for 70 (12-4-69) has the stud mounts for the stove pipe.

Both of these have the same angle on the exhaust port and the bolt clocking is the same. (Measured with angle finder +/- .5 degree.)

thank you for I info !!  appreciated