Author Topic: exhaust manifolds (Read 1234 times)

theblurr · « **on:** August 22, 2011 - 09:00:19 PM »

I'm thinking of using manifolds instead of headers on my sons 74 challenger 440 4 speed, Are their some hp manifolds available that would be better for his car, If so could you all give me some info on them and where I can get some. Thanks

ted · « **Reply #1 on:** August 25, 2011 - 03:20:10 PM »

use the 70-71 HP ones

burdar · « **Reply #2 on:** August 25, 2011 - 04:12:49 PM »

The top FAST and PS guys are pushing 800hp through manifolds. I'm sure they are extrude honed and worked over extensively. The 70-71's will be better out of the box but any BB manifold should be able to be made to flow well enough for a street/strip car. The late 70's BB B-body manifolds would be easier to find and would be cheaper. I don't know how the exhaust pipe flanges changed over the years though.

Strawdawg · « **Reply #3 on:** August 25, 2011 - 08:27:27 PM »

They might be pushing 900 hp if they could use a good header...

Chryco Psycho · « **Reply #4 on:** August 25, 2011 - 08:50:49 PM »

I think Year One has the 69 manifolds reproed

Author Topic: exhaust manifolds (Read 1234 times)

theblurr

exhaust manifolds

ted

Re: exhaust manifolds

burdar

Re: exhaust manifolds

Strawdawg

Re: exhaust manifolds

Chryco Psycho

Re: exhaust manifolds