FOR SALE Big Block Exhaust Manifolds 67-69 RH & 70-71 LH

[Road Grabber]

To the best of my knowledge the left is 1970-71 and the right side is 1967-69.

Sold as a pair or separately

$225 EACH plus shipping

Original NY State

 

[R413]

Maybe, but doubt the factory would mix the years of manifolds.

the RH manifold you have is 1967-69 and the flange angle changed on the 1979 RH manifold. So an H pipe wouldn’t fit from either year 69 or 70, and a 383 would need two different years of headpipes.

it could be done with the right pipes or custom h pipe.

 

[Road Grabber]

Maybe, but doubt the factory would mix the years of manifolds.

the RH manifold you have is 1967-69 and the flange angle changed on the 1979 RH manifold. So an H pipe wouldn’t fit from either year 69 or 70, and a 383 would need two different years of headpipes.

it could be done with the right pipes or custom h pipe.

So the RH is 67-69 & the LH is?

Thanks for jumping in

I can edit the post once I know for sure

 

[R413]

LH is 70-71
the 70-71 RH is he same size as the 67-69, but the heat riser shaft is turned 90 degrees and the bolt holes are positioned differently. So it fits in the car, but not the same headpipe.

 

[Road Grabber]

LH is 70-71
the 70-71 RH is he same size as the 67-69, but the heat riser shaft is turned 90 degrees and the bolt holes are positioned differently. So it fits in the car, but not the same headpipe.

I see. So it would work if you didn’t use an H pipe or had a custom exhaust flange?

Or take and H pipe, cut and rotate the flange perhaps?