Standard Non-HP Exhaust Manifolds for a 1970 440

[Samplingman]

I have two sets of standard exhaust manifolds, both sets should fit a 440. The driver's sides are the same, but which one of the passenger's side would be correct for 1970? Not only do the mechanicals look different, but the flange is pointed in a different direction as well.

 

[fury fan]

I don't know offhand, but googling the casting #s usually brings good results the times I've tried it.

 

[Snotty]

Since my Newport is sitting outside my Office, I just went and looked. I have the one on the left, ending in 76. Now my motor is out of a '71 though, keep that in mind.

 

[detmatt]

The one ending in 876 is from '72 400 & 440 with N95 which is Emission control system.

 

[Furyman]

The round counter weight was introduced in 1970 on big blocks.

 

[Samplingman]

Thanks guys, I'll focus my attention on the one with the round counter weight. The one on the right came off of the '69 motor, but I don't believe it has the original heads either. My concern is that the flanges match up with the NOS Y pipe I have.

 

[detmatt]

What's the part number on the other?

 

[Samplingman]

What's the part number on the other?

2582484 or 464, hard to tell.

 

[detmatt]

464 is '66 - '69 C-body big block among other applications.

 

[Samplingman]

464 is '66 - '69 C-body big block among other applications.

Thanks, that makes sense now. I'll have to mate up the flange of the Y pipe to decide which one will work.